{
  "cik": 1097149,
  "entityName": "ALIGN TECHNOLOGY, INC.",
  "facts": {
    "dei": {
      "EntityCommonStockSharesOutstanding": {
        "label": "Entity Common Stock, Shares Outstanding",
        "description": "Indicate number of shares or other units outstanding of each of registrant's classes of capital or common stock or other ownership interests, if and as stated on cover of related periodic report. Where multiple classes or units exist define each class/interest by adding class of stock items such as Common Class A [Member], Common Class B [Member] or Partnership Interest [Member] onto the Instrument [Domain] of the Entity Listings, Instrument.",
        "units": {
          "shares": [
            {
              "end": "2010-04-29",
              "val": 77816865,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2010Q1I"
            },
            {
              "end": "2010-07-30",
              "val": 76162316,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2010Q2I"
            },
            {
              "end": "2010-10-29",
              "val": 76311295,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2010Q3I"
            },
            {
              "end": "2011-02-18",
              "val": 76878090,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2011Q1I"
            },
            {
              "end": "2011-07-29",
              "val": 78477658,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-10-28",
              "val": 78544695,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2012-02-22",
              "val": 79368864,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2012-05-03",
              "val": 80361466,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-07-27",
              "val": 81352708,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-10-26",
              "val": 81384625,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2013-02-22",
              "val": 81758299,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2013-04-26",
              "val": 81557143,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-07-26",
              "val": 79837318,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-10-25",
              "val": 80318743,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2014-02-21",
              "val": 81480919,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2014-04-25",
              "val": 81635404,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-07-25",
              "val": 80793072,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-10-24",
              "val": 80289814,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2015-02-20",
              "val": 80720243,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2015-04-24",
              "val": 80750207,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-07-24",
              "val": 80078373,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-10-23",
              "val": 79490148,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2016-02-19",
              "val": 79625640,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2016-04-29",
              "val": 80184259,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-07-29",
              "val": 80046571,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-10-31",
              "val": 79689402,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2017-02-21",
              "val": 80276127,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2017-04-28",
              "val": 80331340,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-07-28",
              "val": 80150594,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-10-27",
              "val": 80177704,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2018-02-23",
              "val": 80135229,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2018-04-27",
              "val": 80149641,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-07-27",
              "val": 80320082,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-10-26",
              "val": 79984381,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2019-02-22",
              "val": 79989347,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2019-04-26",
              "val": 80004892,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-07-26",
              "val": 79870881,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-10-25",
              "val": 78812958,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2020-02-21",
              "val": 78753161,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2020-04-30",
              "val": 78762958,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-07-24",
              "val": 78786683,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-10-23",
              "val": 78850392,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2021-02-22",
              "val": 79132723,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2021-04-30",
              "val": 79136575,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-07-30",
              "val": 79011543,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-10-28",
              "val": 78853069,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2022-02-21",
              "val": 78795494,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2022-04-29",
              "val": 78805547,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-07-29",
              "val": 78108185,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-10-28",
              "val": 78112351,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2023-02-20",
              "val": 76610319,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2023-04-28",
              "val": 76516951,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-07-28",
              "val": 76533704,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-10-27",
              "val": 76589114,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2024-02-22",
              "val": 75104132,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2024-04-26",
              "val": 75281687,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-07-26",
              "val": 74697065,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-11-01",
              "val": 74653060,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2025-02-20",
              "val": 73597648,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2025-05-01",
              "val": 72484841,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-08-01",
              "val": 72486368,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-10-29",
              "val": 71749995,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2026-02-20",
              "val": 71282132,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2026-05-01",
              "val": 71618127,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-07-31",
              "val": 71039852,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "EntityPublicFloat": {
        "label": "Entity Public Float",
        "description": "The aggregate market value of the voting and non-voting common equity held by non-affiliates computed by reference to the price at which the common equity was last sold, or the average bid and asked price of such common equity, as of the last business day of the registrant's most recently completed second fiscal quarter.",
        "units": {
          "USD": [
            {
              "end": "2010-06-30",
              "val": 1101023930,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2010Q2I"
            },
            {
              "end": "2011-06-30",
              "val": 1744074304,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2012-06-30",
              "val": 2641311855,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2013-06-30",
              "val": 2908140447,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2014-06-30",
              "val": 4457461725,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2015-06-30",
              "val": 3646077546,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2016-06-30",
              "val": 4608283946,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2017-06-30",
              "val": 9773962344,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2018-06-29",
              "val": 22262043858,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2019-06-28",
              "val": 15900000000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2020-06-30",
              "val": 14500000000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2021-06-30",
              "val": 34700000000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2022-06-30",
              "val": 13300000000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2023-06-30",
              "val": 13700000000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2024-06-28",
              "val": 12900000000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2025-06-30",
              "val": 11100000000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025Q2I"
            }
          ]
        }
      }
    },
    "invest": {
      "DerivativeNotionalAmount": {
        "label": "Derivative, Notional Amount",
        "description": "Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.",
        "units": {
          "USD": [
            {
              "end": "2015-12-31",
              "val": 59766000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015Q4I"
            }
          ]
        }
      }
    },
    "us-gaap": {
      "AcceleratedShareRepurchasesSettlementPaymentOrReceipt": {
        "label": "Accelerated Share Repurchases, Settlement (Payment) or Receipt",
        "description": "Amount of cash receipt from (payment to) bank; or stock received from (issuance to) bank in the settlement of the accelerated share repurchase agreement.",
        "units": {
          "USD": [
            {
              "end": "2015-04-28",
              "val": -70000000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2015-04-28",
              "val": -70000000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2016-09-30",
              "val": -8200000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            }
          ]
        }
      },
      "AccountsPayableCurrent": {
        "label": "Accounts Payable, Current",
        "description": "Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).",
        "units": {
          "USD": [
            {
              "end": "2009-12-31",
              "val": 6122000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "end": "2009-12-31",
              "val": 6122000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "end": "2009-12-31",
              "val": 6122000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2009Q4I"
            },
            {
              "end": "2010-06-30",
              "val": 5316000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2010Q2I"
            },
            {
              "end": "2010-09-30",
              "val": 5826000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2010Q3I"
            },
            {
              "end": "2010-12-31",
              "val": 7768000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "end": "2010-12-31",
              "val": 7768000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "end": "2010-12-31",
              "val": 7768000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2010-12-31",
              "val": 7768000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2010-12-31",
              "val": 7768000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-03-31",
              "val": 6594000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2011Q1I"
            },
            {
              "end": "2011-06-30",
              "val": 10407000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 14138000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 19265000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 19265000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2011-12-31",
              "val": 19265000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "end": "2011-12-31",
              "val": 19265000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "end": "2011-12-31",
              "val": 19265000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 14640000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 15226000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 14415000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 19549000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 19549000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "end": "2012-12-31",
              "val": 19549000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "end": "2012-12-31",
              "val": 19549000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "end": "2012-12-31",
              "val": 19549000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 19748000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 21556000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 19157000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 17718000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 17718000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "end": "2013-12-31",
              "val": 17718000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "end": "2013-12-31",
              "val": 17718000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "end": "2013-12-31",
              "val": 17718000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 18506000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 20939000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 24517000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 23247000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 23247000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2014-12-31",
              "val": 23247000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2014-12-31",
              "val": 23247000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "end": "2014-12-31",
              "val": 23247000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 24996000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 29513000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 32599000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 34354000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 34354000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2015-12-31",
              "val": 34354000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2015-12-31",
              "val": 34354000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "end": "2015-12-31",
              "val": 34354000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 36258000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 30927000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 33104000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 28596000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 28596000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "end": "2016-12-31",
              "val": 28596000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
              "val": 28596000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "end": "2016-12-31",
              "val": 28596000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 37028000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 45953000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 45942000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 36776000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 36776000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 36776000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 36776000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 36776000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 41881000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 48744000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 43065000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 64256000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 64256000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 64256000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 64256000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 64256000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 62512000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 61950000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 63300000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 87250000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 87250000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2019-12-31",
              "val": 87250000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2019-12-31",
              "val": 87250000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2019-12-31",
              "val": 87250000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 72690000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-06-30",
              "val": 94987000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 119184000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 142132000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 142132000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2020-12-31",
              "val": 142132000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2020-12-31",
              "val": 142132000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2020-12-31",
              "val": 142132000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 124298000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 225079000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 174916000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 163886000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 163886000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 163886000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 163886000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 163886000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 186509000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 145607000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 138918000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 127870000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 127870000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 127870000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 127870000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 127870000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 130561000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 110155000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 99693000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 113125000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 113125000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 113125000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 113125000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 113125000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 117238000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 105792000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 109035000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 108693000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 108693000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2024-12-31",
              "val": 108693000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2024-12-31",
              "val": 108693000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2024-12-31",
              "val": 108693000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 125382000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 114434000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 125550000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 121450000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2025-12-31",
              "val": 121450000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 121450000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 123720000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 109841000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "AccountsReceivableNetCurrent": {
        "label": "Accounts Receivable, after Allowance for Credit Loss, Current",
        "description": "Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.",
        "units": {
          "USD": [
            {
              "end": "2009-12-31",
              "val": 54537000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "end": "2009-12-31",
              "val": 54537000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "end": "2009-12-31",
              "val": 54537000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2009Q4I"
            },
            {
              "end": "2010-06-30",
              "val": 62930000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2010Q2I"
            },
            {
              "end": "2010-09-30",
              "val": 63811000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2010Q3I"
            },
            {
              "end": "2010-12-31",
              "val": 65430000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "end": "2010-12-31",
              "val": 65430000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "end": "2010-12-31",
              "val": 65430000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2010-12-31",
              "val": 65430000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2010-12-31",
              "val": 65430000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-03-31",
              "val": 73904000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2011Q1I"
            },
            {
              "end": "2011-06-30",
              "val": 82130000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 86648000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 91537000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 91537000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2011-12-31",
              "val": 91537000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "end": "2011-12-31",
              "val": 91537000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "end": "2011-12-31",
              "val": 91537000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 94441000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 102149000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 105902000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 98992000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 98992000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "end": "2012-12-31",
              "val": 98992000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "end": "2012-12-31",
              "val": 98992000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "end": "2012-12-31",
              "val": 98992000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 108672000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 112367000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 109179000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 113250000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 113250000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "end": "2013-12-31",
              "val": 113250000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "end": "2013-12-31",
              "val": 113250000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "end": "2013-12-31",
              "val": 113250000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 126183000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 131028000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 130047000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 129751000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 129751000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2014-12-31",
              "val": 129751000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2014-12-31",
              "val": 129751000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "end": "2014-12-31",
              "val": 129751000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 138159000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 146466000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 148395000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 158550000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 158550000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2015-12-31",
              "val": 158550000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2015-12-31",
              "val": 158550000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "end": "2015-12-31",
              "val": 158550000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 178000000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 192660000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 244992000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 247415000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 247415000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "end": "2016-12-31",
              "val": 247415000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
              "val": 247415000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "end": "2016-12-31",
              "val": 247415000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 267128000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 291694000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 321328000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 322825000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 324189000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 324189000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 324189000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 324189000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 361459000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 374371000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 420276000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 439009000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 439009000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 439009000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 439009000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 439009000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 479281000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 520094000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 531816000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 550291000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 550291000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2019-12-31",
              "val": 550291000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2019-12-31",
              "val": 550291000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2019-12-31",
              "val": 550291000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 533004000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-06-30",
              "val": 473314000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 626046000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 657704000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 657704000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2020-12-31",
              "val": 657704000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2020-12-31",
              "val": 657704000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2020-12-31",
              "val": 657704000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 718957000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 808079000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 855037000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 897198000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 897198000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 897198000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 897198000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 897198000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 950892000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 931854000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 859629000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 859685000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 859685000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 859685000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 859685000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 859685000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 884430000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 908395000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 904178000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 903424000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 903424000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 903424000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 903424000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 903424000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 950738000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 1020135000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 1010601000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 995685000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 995685000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2024-12-31",
              "val": 995685000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2024-12-31",
              "val": 995685000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2024-12-31",
              "val": 995685000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 1061976000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 1116210000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 1099372000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 1101757000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2025-12-31",
              "val": 1101757000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 1101757000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 1125114000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 1148392000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "AccruedIncomeTaxes": {
        "label": "Accrued Income Taxes",
        "description": "Carrying amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all domestic and foreign income tax obligations due. This amount is the total of current and noncurrent accrued income taxes.",
        "units": {
          "USD": [
            {
              "end": "2019-12-31",
              "val": 14130000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 15324000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            }
          ]
        }
      },
      "AccruedIncomeTaxesCurrent": {
        "label": "Accrued Income Taxes, Current",
        "description": "Carrying amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all currently due domestic and foreign income tax obligations.",
        "units": {
          "USD": [
            {
              "end": "2010-12-31",
              "val": 1936000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2010-12-31",
              "val": 1936000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2010-12-31",
              "val": 1936000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-06-30",
              "val": 278000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 310000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 426000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 426000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2011-12-31",
              "val": 426000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "end": "2011-12-31",
              "val": 426000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "end": "2011-12-31",
              "val": 426000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 665000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 714000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 461000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 572000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 572000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "end": "2012-12-31",
              "val": 572000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "end": "2012-12-31",
              "val": 572000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "end": "2012-12-31",
              "val": 572000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 595000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 1444000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 1317000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 1205000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 1205000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "end": "2013-12-31",
              "val": 1205000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "end": "2013-12-31",
              "val": 1205000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "end": "2013-12-31",
              "val": 1205000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 408000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 2248000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 3949000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 2027000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 2027000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2014-12-31",
              "val": 2027000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2014-12-31",
              "val": 2027000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "end": "2014-12-31",
              "val": 2027000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 4290000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 1939000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 2400000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 2646000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 2646000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2015-12-31",
              "val": 2646000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2015-12-31",
              "val": 2646000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "end": "2015-12-31",
              "val": 2646000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 1793000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 3385000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 5043000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 4210000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 4210000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "end": "2016-12-31",
              "val": 4210000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
              "val": 4210000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "end": "2016-12-31",
              "val": 4210000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 4760000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 7003000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 10486000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 12405000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 12405000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 12405000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 12405000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 12405000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 17134000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 7764000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 4111000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 5752000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 5752000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 5752000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 5752000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 5752000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 2255000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 4407000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 5885000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 14130000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 14130000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2019-12-31",
              "val": 14130000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-09-30",
              "val": 15539000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 30130000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 30130000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2020-12-31",
              "val": 30130000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2020-12-31",
              "val": 30130000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 41539000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-09-30",
              "val": 35152000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 33838000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 33838000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 33838000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 45646000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-12-31",
              "val": 74323000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 74323000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 74323000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 74323000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 74323000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 105038000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 147618000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 157175000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 38103000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 38103000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 38103000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 38103000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 38103000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 38942000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 36082000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 36860000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 48808000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 48808000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2024-12-31",
              "val": 48808000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2024-12-31",
              "val": 48808000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2024-12-31",
              "val": 48808000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 47838000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 30191000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 39522000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 44049000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2025-12-31",
              "val": 44049000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 44049000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 34916000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 39509000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "AccruedIncomeTaxesNoncurrent": {
        "label": "Accrued Income Taxes, Noncurrent",
        "description": "Carrying amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all domestic and foreign income tax obligations due beyond one year or the operating cycle, whichever is longer. Alternate captions include income taxes payable, noncurrent.",
        "units": {
          "USD": [
            {
              "end": "2019-12-31",
              "val": 102794000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2019-12-31",
              "val": 102794000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2019-12-31",
              "val": 102794000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-06-30",
              "val": 115257000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 108669000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 105748000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 105748000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2020-12-31",
              "val": 105748000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2020-12-31",
              "val": 105748000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2020-12-31",
              "val": 105748000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 109668000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 113306000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 125986000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 118072000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 118072000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 118072000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 118072000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 118072000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 123476000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 116414000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 127059000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 124393000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 124393000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 124393000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 124393000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 124393000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 126541000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 113309000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 116443000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 116744000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 116744000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 116744000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 116744000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 116744000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 121314000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 103783000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 111558000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 96466000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 96466000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2024-12-31",
              "val": 96466000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2024-12-31",
              "val": 96466000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2024-12-31",
              "val": 96466000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 99781000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 103558000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 110595000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 68200000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2025-12-31",
              "val": 68200000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 68200000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 67287000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 69964000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "AccruedLiabilitiesCurrent": {
        "label": "Accrued Liabilities, Current",
        "description": "Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).",
        "units": {
          "USD": [
            {
              "end": "2009-12-31",
              "val": 42822000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "end": "2009-12-31",
              "val": 42822000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "end": "2009-12-31",
              "val": 42822000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2009Q4I"
            },
            {
              "end": "2010-06-30",
              "val": 41455000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2010Q2I"
            },
            {
              "end": "2010-09-30",
              "val": 44074000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2010Q3I"
            },
            {
              "end": "2010-12-31",
              "val": 51358000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "end": "2010-12-31",
              "val": 51358000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "end": "2010-12-31",
              "val": 51358000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2010-12-31",
              "val": 51358000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2010-12-31",
              "val": 51358000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-03-31",
              "val": 44201000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2011Q1I"
            },
            {
              "end": "2011-06-30",
              "val": 56020000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 58281000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 76600000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 76600000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2011-12-31",
              "val": 76600000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "end": "2011-12-31",
              "val": 76600000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "end": "2011-12-31",
              "val": 76600000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 66538000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 69207000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 71949000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 74247000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 74247000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "end": "2012-12-31",
              "val": 74247000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "end": "2012-12-31",
              "val": 74247000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "end": "2012-12-31",
              "val": 74247000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 64635000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 75776000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 73714000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 80345000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 80345000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "end": "2013-12-31",
              "val": 80345000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "end": "2013-12-31",
              "val": 80345000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "end": "2013-12-31",
              "val": 80345000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 71349000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 81049000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 86600000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 87880000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 87880000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2014-12-31",
              "val": 87880000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2014-12-31",
              "val": 87880000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "end": "2014-12-31",
              "val": 87880000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 81711000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 91992000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 95914000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 107765000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 107765000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2015-12-31",
              "val": 107765000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2015-12-31",
              "val": 107765000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "end": "2015-12-31",
              "val": 107765000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 92723000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 107505000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 132538000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 134332000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 134332000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "end": "2016-12-31",
              "val": 134332000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
              "val": 134332000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "end": "2016-12-31",
              "val": 134332000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 125631000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 158838000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 173851000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 194198000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 195562000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 195562000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 195562000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 195562000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 180093000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 196754000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 219035000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 234679000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 234679000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 234679000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 234679000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 234679000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 252754000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 245634000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 286132000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 319958000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 319958000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2019-12-31",
              "val": 319958000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2019-12-31",
              "val": 319958000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2019-12-31",
              "val": 319958000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 259459000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-06-30",
              "val": 244774000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 318471000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 405582000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 405582000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2020-12-31",
              "val": 405582000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2020-12-31",
              "val": 405582000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2020-12-31",
              "val": 405582000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 406672000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 495572000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 545286000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 607315000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 607315000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 607315000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 607315000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 607315000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 465071000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 416459000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 383618000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 454374000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 454374000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 454374000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 454374000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 454374000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 497248000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 600163000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 614462000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 525780000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 525780000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 525780000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 525780000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 525780000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 496601000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 555458000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 574556000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 598188000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 598188000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2024-12-31",
              "val": 598188000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2024-12-31",
              "val": 598188000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2024-12-31",
              "val": 598188000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 546173000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 563059000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 546293000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 536749000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2025-12-31",
              "val": 536749000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 536749000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 546879000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 611568000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "AccruedMarketingCostsCurrent": {
        "label": "Accrued Marketing Costs, Current",
        "description": "Carrying value as of the balance sheet date of obligations incurred through that date and payable for the marketing, trade and selling of the entity's goods and services. Marketing costs would include expenditures for planning and executing the conception, pricing, promotion, and distribution of ideas, goods, and services; costs of public relations and corporate promotions; and obligations incurred and payable for sales discounts, rebates, price protection programs, etc. offered to customers and under government programs. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).",
        "units": {
          "USD": [
            {
              "end": "2010-12-31",
              "val": 3826000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2010-12-31",
              "val": 3826000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2010-12-31",
              "val": 3826000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-06-30",
              "val": 5858000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 6374000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 8358000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 8358000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2011-12-31",
              "val": 8358000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "end": "2011-12-31",
              "val": 8358000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "end": "2011-12-31",
              "val": 8358000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 7679000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 8851000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 8501000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 8333000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 8333000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "end": "2012-12-31",
              "val": 8333000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "end": "2012-12-31",
              "val": 8333000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "end": "2012-12-31",
              "val": 8333000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 8996000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 9547000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 9383000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 10100000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 10100000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "end": "2013-12-31",
              "val": 10100000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "end": "2013-12-31",
              "val": 10100000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "end": "2013-12-31",
              "val": 10100000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 9851000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 10137000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 10256000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 11110000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 11110000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2014-12-31",
              "val": 11110000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2014-12-31",
              "val": 11110000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "end": "2014-12-31",
              "val": 11110000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 10423000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 12647000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 7172000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 8486000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 8486000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2015-12-31",
              "val": 8486000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2015-12-31",
              "val": 8486000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "end": "2015-12-31",
              "val": 8486000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 7759000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 8752000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 9258000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 10342000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 10342000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "end": "2016-12-31",
              "val": 10342000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
              "val": 10342000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "end": "2016-12-31",
              "val": 10342000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 10751000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 11959000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 9293000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 11209000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 11209000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 11209000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 11209000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 11209000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 5121000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 3772000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 7765000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 5668000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 5668000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 5668000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 5668000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 5668000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 6612000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 4210000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 7068000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 11393000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-12-31",
              "val": 34488000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2020-12-31",
              "val": 34488000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2020-12-31",
              "val": 34488000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-06-30",
              "val": 67820000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 55310000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 41387000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 41387000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 41387000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 41387000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 41387000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 41221000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 37250000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 35661000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 36407000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 36407000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 36407000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 36407000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 36407000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 36227000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 43628000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 35405000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 34035000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 34035000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 34035000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 34035000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 34035000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 42933000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 48287000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 38152000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 37617000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 37617000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2024-12-31",
              "val": 37617000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2024-12-31",
              "val": 37617000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2024-12-31",
              "val": 37617000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 43086000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 36051000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 34247000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 29941000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2025-12-31",
              "val": 29941000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 29941000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 35012000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 36759000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "AccruedProfessionalFeesCurrent": {
        "label": "Accrued Professional Fees, Current",
        "description": "Carrying value as of the balance sheet date of obligations incurred through that date and payable for professional fees, such as for legal and accounting services received. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).",
        "units": {
          "USD": [
            {
              "end": "2011-12-31",
              "val": 654000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2011-12-31",
              "val": 654000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "end": "2011-12-31",
              "val": 654000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "end": "2011-12-31",
              "val": 654000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 1481000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 1399000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 2165000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 2349000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 2349000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "end": "2012-12-31",
              "val": 2349000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "end": "2012-12-31",
              "val": 2349000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "end": "2012-12-31",
              "val": 2349000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 1207000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 1160000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 1485000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 1892000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 1892000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "end": "2013-12-31",
              "val": 1892000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "end": "2013-12-31",
              "val": 1892000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "end": "2013-12-31",
              "val": 1892000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 2085000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 1872000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 1605000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 2494000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 2494000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2014-12-31",
              "val": 2494000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2014-12-31",
              "val": 2494000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "end": "2014-12-31",
              "val": 2494000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 4519000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 2487000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 3841000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 2775000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 2775000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2015-12-31",
              "val": 2775000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2015-12-31",
              "val": 2775000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "end": "2015-12-31",
              "val": 2775000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 3448000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 3404000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 4947000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 3604000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 3604000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "end": "2016-12-31",
              "val": 3604000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
              "val": 3604000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "end": "2016-12-31",
              "val": 3604000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 4092000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 7139000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 8181000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 6316000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 6316000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 6316000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 6316000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 6316000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 6562000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 6876000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 7774000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 6752000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 6752000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 6752000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 6752000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 4955000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 6454000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 15554000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 20617000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2020-12-31",
              "val": 20617000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2020-12-31",
              "val": 20617000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-06-30",
              "val": 28844000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 29488000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 31457000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 31457000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 31457000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 31457000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 36340000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 18433000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 21260000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 12245000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 12245000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 48270000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 51174000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "AccruedProfessionalFeesCurrentAndNoncurrent": {
        "label": "Accrued Professional Fees",
        "description": "Carrying value as of the balance sheet date of obligations incurred through that date and payable for professional fees, such as for legal and accounting services received.",
        "units": {
          "USD": [
            {
              "end": "2019-12-31",
              "val": 10410000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2019-12-31",
              "val": 10410000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2019-12-31",
              "val": 10410000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 12738000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-06-30",
              "val": 19506000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 19112000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            }
          ]
        }
      },
      "AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment": {
        "label": "Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment",
        "description": "Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.",
        "units": {
          "USD": [
            {
              "end": "2010-12-31",
              "val": 67774000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-12-31",
              "val": 75467000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 75467000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 85935000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 85935000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-12-31",
              "val": 105506000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 105506000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-12-31",
              "val": 107802000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 107802000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 118037000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 118037000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 135714000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 135714000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 135808000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 135808000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 171727000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 171727000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-12-31",
              "val": 229516000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 229516000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-12-31",
              "val": 301252000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 301252000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-12-31",
              "val": 359101000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 359101000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-12-31",
              "val": 449726000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 449726000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-12-31",
              "val": 550762000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 550762000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-12-31",
              "val": 661712000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 661712000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 767324000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025Q4I"
            }
          ]
        }
      },
      "AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax": {
        "label": "Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax",
        "description": "Accumulated adjustment, net of tax, that results from the process of translating subsidiary financial statements and foreign equity investments into the reporting currency from the functional currency of the reporting entity, net of reclassification of realized foreign currency translation gains or losses.",
        "units": {
          "USD": [
            {
              "end": "2009-12-31",
              "val": 100000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009Q4I"
            },
            {
              "end": "2010-12-31",
              "val": 100000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 100000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2012Q4I"
            }
          ]
        }
      },
      "AccumulatedOtherComprehensiveIncomeLossNetOfTax": {
        "label": "Accumulated Other Comprehensive Income (Loss), Net of Tax",
        "description": "Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.",
        "units": {
          "USD": [
            {
              "end": "2009-12-31",
              "val": 455000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "end": "2009-12-31",
              "val": 455000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "end": "2009-12-31",
              "val": 455000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2009Q4I"
            },
            {
              "end": "2010-06-30",
              "val": -249000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2010Q2I"
            },
            {
              "end": "2010-09-30",
              "val": 317000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2010Q3I"
            },
            {
              "end": "2010-12-31",
              "val": 134000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "end": "2010-12-31",
              "val": 134000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "end": "2010-12-31",
              "val": 134000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2010-12-31",
              "val": 134000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2010-12-31",
              "val": 134000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-03-31",
              "val": 624000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2011Q1I"
            },
            {
              "end": "2011-06-30",
              "val": 743000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 346000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 46000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 46000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2011-12-31",
              "val": 46000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "end": "2011-12-31",
              "val": 46000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "end": "2011-12-31",
              "val": 46000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 193000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": -340000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": -19000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 203000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 203000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "end": "2012-12-31",
              "val": 203000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "end": "2012-12-31",
              "val": 203000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "end": "2012-12-31",
              "val": 203000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 151000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": -44000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 332000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 294000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 294000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "end": "2013-12-31",
              "val": 294000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "end": "2013-12-31",
              "val": 294000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "end": "2013-12-31",
              "val": 294000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 442000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 508000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 60000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": -140000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": -140000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2014-12-31",
              "val": -140000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2014-12-31",
              "val": -140000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "end": "2014-12-31",
              "val": -140000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": -106000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": -187000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 25000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": -980000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": -980000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2015-12-31",
              "val": -980000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2015-12-31",
              "val": -980000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "end": "2015-12-31",
              "val": -980000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 22000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 428000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": -85000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": -938000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": -938000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "end": "2016-12-31",
              "val": -938000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
              "val": -938000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "end": "2016-12-31",
              "val": -938000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": -1382000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": -156000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 788000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 571000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 571000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 571000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 571000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 571000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 1484000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 911000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": -728000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": -2774000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": -2774000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": -2774000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": -2774000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": -2774000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": -2281000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": -1876000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": -1927000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": -688000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": -688000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2019-12-31",
              "val": -688000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2019-12-31",
              "val": -688000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2019-12-31",
              "val": -688000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": -193000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-06-30",
              "val": 9101000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 24911000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 43501000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 43501000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2020-12-31",
              "val": 43501000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2020-12-31",
              "val": 43501000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2020-12-31",
              "val": 43501000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 29030000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 29616000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 17599000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 4326000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 4326000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 4326000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 4326000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 4326000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": -5713000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": -19770000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": -40745000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": -10284000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": -10284000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": -10284000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": -10284000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": -10284000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 1835000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 11343000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 2047000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 21168000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 21168000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 21168000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 21168000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 21168000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 18439000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 25041000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 35913000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 5978000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 5978000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2024-12-31",
              "val": 5978000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2024-12-31",
              "val": 5978000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2024-12-31",
              "val": 5978000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 18177000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 61187000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 65372000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 75388000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2025-12-31",
              "val": 75388000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 75388000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 70093000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 66586000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "AdditionalPaidInCapital": {
        "label": "Additional Paid in Capital",
        "description": "Excess of issue price over par or stated value of the entity's capital stock and amounts received from other transactions involving the entity's stock or stockholders. Includes adjustments to additional paid in capital. Some examples of such adjustments include recording the issuance of debt with a beneficial conversion feature and certain tax consequences of equity instruments awarded to employees. Use this element for the aggregate amount of additional paid-in capital associated with common and preferred stock. For additional paid-in capital associated with only common stock, use the element additional paid in capital, common stock. For additional paid-in capital associated with only preferred stock, use the element additional paid in capital, preferred stock.",
        "units": {
          "USD": [
            {
              "end": "2009-12-31",
              "val": 525073000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "end": "2009-12-31",
              "val": 525073000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "end": "2009-12-31",
              "val": 525073000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2009Q4I"
            },
            {
              "end": "2010-06-30",
              "val": 539160000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2010Q2I"
            },
            {
              "end": "2010-09-30",
              "val": 547228000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2010Q3I"
            },
            {
              "end": "2010-12-31",
              "val": 555851000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "end": "2010-12-31",
              "val": 555851000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "end": "2010-12-31",
              "val": 555851000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2010-12-31",
              "val": 555851000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2010-12-31",
              "val": 555851000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-03-31",
              "val": 563878000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "end": "2011-03-31",
              "val": 565946000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2011Q1I"
            },
            {
              "end": "2011-06-30",
              "val": 580274000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2011-06-30",
              "val": 585648000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 588501000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2011-09-30",
              "val": 594489000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 607240000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 607240000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2011-12-31",
              "val": 607240000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "end": "2011-12-31",
              "val": 607240000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "end": "2011-12-31",
              "val": 607240000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 619991000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2012-03-31",
              "val": 628034000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 655307000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 676605000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 670732000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 670732000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "end": "2012-12-31",
              "val": 670732000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "end": "2012-12-31",
              "val": 670732000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "end": "2012-12-31",
              "val": 670732000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 694334000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 693102000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 713676000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 729578000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 729578000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "end": "2013-12-31",
              "val": 729578000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "end": "2013-12-31",
              "val": 729578000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "end": "2013-12-31",
              "val": 729578000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 759768000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 742886000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 775523000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 783410000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 783410000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2014-12-31",
              "val": 783410000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2014-12-31",
              "val": 783410000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "end": "2014-12-31",
              "val": 783410000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 789453000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 775806000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 810116000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 821507000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 821507000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2015-12-31",
              "val": 821507000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2015-12-31",
              "val": 821507000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "end": "2015-12-31",
              "val": 821507000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 824063000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 821815000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 854422000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 864871000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 864871000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "end": "2016-12-31",
              "val": 864871000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
              "val": 864871000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "end": "2016-12-31",
              "val": 864871000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 850092000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 845560000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 880045000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 886435000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 886435000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 886435000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 886435000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 886435000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 858632000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 844599000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 865271000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 877514000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 877514000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 877514000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 877514000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 877514000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 855956000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 874275000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 892309000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 906937000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 906937000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2019-12-31",
              "val": 906937000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2019-12-31",
              "val": 906937000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2019-12-31",
              "val": 906937000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 895131000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-06-30",
              "val": 918495000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 951740000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 974556000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 974556000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2020-12-31",
              "val": 974556000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2020-12-31",
              "val": 974556000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2020-12-31",
              "val": 974556000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 948362000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 895831000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 972450000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 999006000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 999006000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 999006000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 999006000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 999006000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 992287000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 1016882000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 1060698000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 1044946000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 1044946000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 1044946000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 1044946000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 1044946000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 1104693000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 1141623000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 1193057000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 1162140000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 1162140000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 1162140000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 1162140000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 1162140000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 1238739000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 1276298000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 1335909000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 1362234000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 1362234000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2024-12-31",
              "val": 1362234000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2024-12-31",
              "val": 1362234000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2024-12-31",
              "val": 1362234000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 1386807000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 1426541000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 1475146000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 1509595000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2025-12-31",
              "val": 1509595000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 1509595000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 1530934000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 1570297000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "AdjustmentsToAdditionalPaidInCapitalOther": {
        "label": "Adjustments to Additional Paid in Capital, Other",
        "description": "Amount of other increase (decrease) in additional paid in capital (APIC).",
        "units": {
          "USD": [
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 40000000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3"
            }
          ]
        }
      },
      "AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue": {
        "label": "APIC, Share-based Payment Arrangement, Increase for Cost Recognition",
        "description": "Amount of increase to additional paid-in capital (APIC) for recognition of cost for award under share-based payment arrangement.",
        "units": {
          "USD": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": 17057000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 15088000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 15088000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 16072000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 16072000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 16072000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 19165000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 19165000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 19165000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 21483000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 21483000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 21483000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 26438000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 26438000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 26438000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 39823000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 39823000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 39823000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 52943000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 52943000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 52943000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 54148000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 54148000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 54148000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 58854000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 58854000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 58854000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 15830000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 32720000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": 16890000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2018Q2"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 51918000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 19198000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2018Q3"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 70763000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 70763000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 70763000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 21044000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 21044000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 43511000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 43511000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 22467000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 22467000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2019Q2"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 67687000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 67687000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 24176000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 24176000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2019Q3"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 88184000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 88184000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 88184000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 22927000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 22927000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 47934000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 47934000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": 25007000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": 25007000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2020Q2"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 73163000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 73163000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 25229000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 25229000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2020Q3"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 98427000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 98427000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 98427000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 27241000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 27241000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 56096000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 56096000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 28855000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 28855000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2021Q2"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 84498000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 84498000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 28402000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 28402000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2021Q3"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 114336000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 114336000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 114336000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 31621000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 31621000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 65761000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 65761000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": 34140000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": 34140000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2022Q2"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 98679000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 98679000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": 32918000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": 32918000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2022Q3"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 133367000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 133367000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 133367000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 37735000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 37735000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 75595000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 75595000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 37860000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 37860000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2023Q2"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 115197000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 115197000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 39602000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 39602000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2023Q3"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 154026000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 154026000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 154026000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 38788000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 38788000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 85816000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 85816000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 47028000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 47028000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2024Q2"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 134855000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 134855000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 49039000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 49039000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2024Q3"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 173703000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 173703000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 44997000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 44997000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 93205000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 93205000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 48208000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 48208000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q2"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 141582000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-07-01",
              "end": "2025-09-30",
              "val": 48377000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 185870000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": 40924000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": 86484000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2026-04-01",
              "end": "2026-06-30",
              "val": 45560000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2"
            }
          ]
        }
      },
      "AdjustmentsToAdditionalPaidInCapitalTaxEffectFromShareBasedCompensation": {
        "label": "Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation",
        "description": "Amount of increase in additional paid in capital (APIC) resulting from a tax benefit associated with share-based compensation plan other than an employee stock ownership plan (ESOP). Includes, but is not limited to, excess tax benefit.",
        "units": {
          "USD": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": 144000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": -637000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": -637000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 3965000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 3965000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 3965000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 11391000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 11391000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 11391000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 17187000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 17187000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 17187000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 27103000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 27103000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 27103000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 21393000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 21393000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 21393000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 10224000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 10224000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 10224000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 15888000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 15888000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 15888000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            }
          ]
        }
      },
      "AdjustmentToAdditionalPaidInCapitalIncomeTaxEffectFromShareBasedCompensationNet": {
        "label": "Adjustment to Additional Paid in Capital, Income Tax Effect from Share-based Compensation, Net",
        "description": "Amount of increase (decrease) in additional paid in capital (APIC) resulting from a tax benefit (deficiency) associated with an share-based compensation plan other than an employee stock ownership plan (ESOP).",
        "units": {
          "USD": [
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": -86067000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": -57676000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 45395000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": -47038000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": -1643000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2020Q2"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": -48674000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": -1636000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2020Q3"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": -51122000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 66568000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": -104889000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": -38321000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": -107343000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": -2454000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3"
            }
          ]
        }
      },
      "AdvertisingExpense": {
        "label": "Advertising Expense",
        "description": "Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line.",
        "units": {
          "USD": [
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 18100000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 20200000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 20200000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 21200000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 21200000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 21200000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 23600000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 23600000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 23600000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 26000000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 26000000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 26000000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 26900000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 26900000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 26900000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 23400000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 23400000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 23400000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 36000000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 36000000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 36000000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 70000000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 70100000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 70100000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 88400000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 88400000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 88400000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 119100000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 119100000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 119100000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 161000000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 161000000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 161000000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 325600000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 325600000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 325600000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 222000000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 222000000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 222000000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 201200000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 201200000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 201200000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 185000000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 185000000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 188700000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            }
          ]
        }
      },
      "AllocatedShareBasedCompensationExpense": {
        "label": "Share-based Payment Arrangement, Expense",
        "description": "Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.",
        "units": {
          "USD": [
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 15088000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 7724000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2010-04-01",
              "end": "2010-06-30",
              "val": 4251000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2010Q2"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 16072000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 16072000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 4279000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2011Q1"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 9252000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 9252000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2011-04-01",
              "end": "2011-06-30",
              "val": 4973000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-04-01",
              "end": "2011-06-30",
              "val": 4973000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2011Q2"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 14206000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": 4954000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2011Q3"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 19165000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 19165000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 19165000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 4863000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 4863000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 10142000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 10142000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": 5279000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": 5279000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2012Q2"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 15504000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 15504000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 5362000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 5362000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2012Q3"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 21483000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 21483000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 21483000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 6410000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 6410000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 13675000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 13675000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-04-01",
              "end": "2013-06-30",
              "val": 7265000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-04-01",
              "end": "2013-06-30",
              "val": 7265000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2013Q2"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 21265000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 21265000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 7590000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 7590000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2013Q3"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 26438000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 26438000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 26438000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 9132000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 9132000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 19438000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 19438000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2014-04-01",
              "end": "2014-06-30",
              "val": 10306000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-04-01",
              "end": "2014-06-30",
              "val": 10306000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2014Q2"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 29348000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 29348000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": 9910000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": 9910000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2014Q3"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 39823000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 39823000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 39823000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 11648000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 11648000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 24474000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 24474000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2015-04-01",
              "end": "2015-06-30",
              "val": 12826000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-04-01",
              "end": "2015-06-30",
              "val": 12826000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2015Q2"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 39135000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 39135000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2015-07-01",
              "end": "2015-09-30",
              "val": 14661000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-07-01",
              "end": "2015-09-30",
              "val": 14661000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2015Q3"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 52943000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 52943000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 52943000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 12524000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 12524000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 26223000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 26223000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-04-01",
              "end": "2016-06-30",
              "val": 13699000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-04-01",
              "end": "2016-06-30",
              "val": 13699000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2016Q2"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 39934000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 39934000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": 13711000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": 13711000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2016Q3"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 54148000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 54148000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 54148000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 14812000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 14812000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 29057000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 29057000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-04-01",
              "end": "2017-06-30",
              "val": 14245000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-04-01",
              "end": "2017-06-30",
              "val": 14245000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2017Q2"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 44024000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 44024000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": 14967000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": 14967000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2017Q3"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 58854000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 58854000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 58854000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 15830000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 15830000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 32720000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 32720000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": 16890000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": 16890000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2018Q2"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 51918000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 51918000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 19198000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 19198000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2018Q3"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 70763000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 70763000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 70763000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 21044000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 21044000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 43511000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 43511000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 22467000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 22467000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2019Q2"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 67687000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 67687000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 24176000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 24176000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2019Q3"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 88184000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 88184000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 88184000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 22927000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 22927000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 47934000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 47934000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": 25007000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": 25007000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2020Q2"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 73163000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 73163000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 25229000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 25229000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2020Q3"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 98427000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 98427000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 98427000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 27241000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 27241000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 56096000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 56096000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 28855000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 28855000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2021Q2"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 84498000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 84498000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 28402000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 28402000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2021Q3"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 114336000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 114336000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 114336000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 31621000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 31621000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 65761000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 65761000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": 34140000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": 34140000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2022Q2"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 98679000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 98679000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": 32918000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": 32918000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2022Q3"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 133367000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 133367000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 133367000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 37735000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 37735000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 75595000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 75595000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 37860000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 37860000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2023Q2"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 115197000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 115197000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 39602000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 39602000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2023Q3"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 154026000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 154026000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 154026000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 38788000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 38788000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 85816000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 85816000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 47028000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 47028000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2024Q2"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 134855000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 134855000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 49039000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 49039000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2024Q3"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 173703000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 173703000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 44997000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 44997000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 93205000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 93205000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 48208000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 48208000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q2"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 141582000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-07-01",
              "end": "2025-09-30",
              "val": 48377000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 185870000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": 40924000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": 86484000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2026-04-01",
              "end": "2026-06-30",
              "val": 45560000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2"
            }
          ]
        }
      },
      "AllowanceForDoubtfulAccountsReceivableCurrent": {
        "label": "Accounts Receivable, Allowance for Credit Loss, Current",
        "description": "Amount of allowance for credit loss on accounts receivable, classified as current.",
        "units": {
          "USD": [
            {
              "end": "2009-12-31",
              "val": 1033000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "end": "2009-12-31",
              "val": 1033000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "end": "2009-12-31",
              "val": 1033000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2009Q4I"
            },
            {
              "end": "2010-06-30",
              "val": 573000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2010Q2I"
            },
            {
              "end": "2010-09-30",
              "val": 655000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2010Q3I"
            },
            {
              "end": "2010-12-31",
              "val": 735000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "end": "2010-12-31",
              "val": 735000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "end": "2010-12-31",
              "val": 735000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2010-12-31",
              "val": 735000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-03-31",
              "val": 485000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2011Q1I"
            },
            {
              "end": "2011-06-30",
              "val": 524000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 417000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 6756000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2019-12-31",
              "val": 6756000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2019-12-31",
              "val": 6756000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-06-30",
              "val": 17099000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 13716000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 10239000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 10239000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2020-12-31",
              "val": 10239000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2020-12-31",
              "val": 10239000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2020-12-31",
              "val": 10239000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 9882000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 9427000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 9174000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 9245000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 9245000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 9245000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 9245000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 9245000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 9764000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 9520000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 9617000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 10343000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 10343000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 10343000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 10343000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 10343000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 11192000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 13244000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 13155000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 14893000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 14893000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 14893000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 14893000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 14893000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 16026000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 17355000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 19141000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 19131000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 19131000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2024-12-31",
              "val": 19131000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2024-12-31",
              "val": 19131000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2024-12-31",
              "val": 19131000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 22469000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 24381000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 28250000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 34213000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2025-12-31",
              "val": 34213000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 34213000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 36361000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 27021000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "AmortizationOfAcquiredIntangibleAssets": {
        "label": "Amortization of Acquired Intangible Assets (Deprecated 2013-01-31)",
        "description": "The aggregate expense charged against earnings to allocate the cost of acquired intangible assets. As a noncash expense, this element is added back to net income when calculating cash provided by (used in) operations using the indirect method.",
        "units": {
          "USD": [
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 0,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 592000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 775000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2011-04-01",
              "end": "2011-06-30",
              "val": 592000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-04-01",
              "end": "2011-06-30",
              "val": 775000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2011Q2"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 1910000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 1910000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": 1135000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": 1135000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2011Q3"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 3178000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 2443000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 1146000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 2246000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": 1100000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 3330000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 1083000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 3455000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2012"
            }
          ]
        }
      },
      "AmortizationOfAdvanceRoyalty": {
        "label": "Amortization of Advance Royalty",
        "description": "The expense charged against earnings for the periodic recognition of the advance royalties. These royalties are paid in one accounting period, but are deducted from earnings over time through amortization. For example, royalties that are required to be paid in advance of production from a mineral, oil, or gas property and amortized over the period of right to produce these items.",
        "units": {
          "USD": [
            {
              "start": "2009-01-01",
              "end": "2009-09-30",
              "val": 1906000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 6165000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 6165000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2010-01-01",
              "end": "2010-03-31",
              "val": 827000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2010Q1"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 827000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 827000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 827000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 827000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 827000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 827000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 827000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 0,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 0,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2012"
            }
          ]
        }
      },
      "AmortizationOfIntangibleAssets": {
        "label": "Amortization of Intangible Assets",
        "description": "The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.",
        "units": {
          "USD": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": 2827000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2009-01-01",
              "end": "2009-06-30",
              "val": 1400000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2009-01-01",
              "end": "2009-09-30",
              "val": 2100000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 2800000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 2800000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-03-31",
              "val": 700000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2010Q1"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 1400000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 1400000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 2100000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 2100000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 2800000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 2800000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 2800000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 700000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 700000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2011Q1"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 2175000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 2175000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 4008000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 4008000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 5365000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 5365000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 5365000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 1146000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 1146000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 2246000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 2246000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 3330000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 4371000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 4371000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 1089000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 1702000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 2938000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 2200000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 3200000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 1400000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 3200000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 3200000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-04-01",
              "end": "2017-06-30",
              "val": 1800000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2017Q2"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 4700000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 4700000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": 1500000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2017Q3"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 6200000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 6200000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 1400000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 1400000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 3000000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 3000000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": 1500000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": 1500000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2018Q2"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 4500000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 4500000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 1500000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 1500000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2018Q3"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 6000000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 6000000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 6000000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 1500000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 1500000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 3000000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 3000000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 1500000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 1500000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2019Q2"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 4500000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 4500000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 1500000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 1500000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2019Q3"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 5900000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 5900000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 5900000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 1300000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 1300000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 5400000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 5400000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": 4100000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": 4100000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2020Q2"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 9500000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 9500000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 4100000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 4100000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2020Q3"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 13400000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 13400000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 13400000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 3900000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 3900000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 7800000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 7800000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 3900000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 3900000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2021Q2"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 12200000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 12200000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 4400000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 4400000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2021Q3"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 16600000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 16600000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 16600000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 4300000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 4300000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 8200000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 8200000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": 3900000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": 3900000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2022Q2"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 12100000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 12100000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": 3900000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": 3900000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2022Q3"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 16000000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 16000000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 16000000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 4100000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 4100000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 8200000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 8200000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 4100000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 4100000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2023Q2"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 12400000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 12400000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 4200000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 4200000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2023Q3"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 16400000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 16400000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 16400000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 5000000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 5000000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 9600000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 9600000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 4700000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 4700000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2024Q2"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 14200000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 14200000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 4600000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 4600000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2024Q3"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 18900000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 18900000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 4600000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 4600000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 9300000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 9300000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 4700000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 4700000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q2"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 14000000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-07-01",
              "end": "2025-09-30",
              "val": 4800000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 18800000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": 4800000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": 9600000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2026-04-01",
              "end": "2026-06-30",
              "val": 4800000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2"
            }
          ]
        }
      },
      "AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount": {
        "label": "Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount",
        "description": "Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.",
        "units": {
          "shares": [
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 9300000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 3000000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 3000000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 1500000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2011Q1"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 1700000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2011-04-01",
              "end": "2011-06-30",
              "val": 800000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2011Q2"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 1800000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": 1900000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2011Q3"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 1600000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 1600000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 1600000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 800000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 800000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 100000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 100000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": 100000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 100000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 2500000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 2500000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 100000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 100000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 1800000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 1800000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 1800000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 1800000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 100000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 58000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 111000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 139000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2019Q2"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 25000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 398000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2019Q3"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 79000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 79000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 148000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 231000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 231000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": 733000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": 733000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2020Q2"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 66000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 66000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 65000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 65000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2020Q3"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 280000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 280000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 280000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 76000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 76000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 38000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 38000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 49000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 49000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2021Q2"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 67000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 67000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 83000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 83000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2021Q3"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 1000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 1000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 1000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 151000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 151000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 314000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 314000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": 361000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": 361000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2022Q2"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 317000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 317000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": 345000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": 345000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2022Q3"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 320000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 320000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 320000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 578000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 578000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 367000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 367000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 329000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 329000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2023Q2"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 263000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 263000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 245000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 245000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2023Q3"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 293000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 293000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 293000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 571000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 571000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 648000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 648000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 1149000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 1149000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2024Q2"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 689000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 689000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 1173000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 1173000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2024Q3"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 685000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 685000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 964000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 964000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 1377000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 1377000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 1505000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 1505000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q2"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 1273000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-07-01",
              "end": "2025-09-30",
              "val": 1321000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 1239000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": 845000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": 1048000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2026-04-01",
              "end": "2026-06-30",
              "val": 1768000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2"
            }
          ]
        }
      },
      "AssetImpairmentCharges": {
        "label": "Asset Impairment Charges",
        "description": "Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.",
        "units": {
          "USD": [
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 0,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 0,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": 0,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2012Q2"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 0,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 0,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2012Q3"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 26320000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 26300000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 26300000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 26320000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-03-01",
              "end": "2013-03-31",
              "val": 26300000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-03-01",
              "end": "2013-03-31",
              "val": 26300000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-03-01",
              "end": "2013-03-31",
              "val": 26300000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "start": "2013-03-01",
              "end": "2013-03-31",
              "val": 26300000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-03-01",
              "end": "2013-03-31",
              "val": 26300000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2013Q1I"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 26320000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 26320000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-04-01",
              "end": "2013-06-30",
              "val": 0,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-04-01",
              "end": "2013-06-30",
              "val": 0,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2013Q2"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 26320000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 26320000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 0,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 0,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2013Q3"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 0,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 0,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-04-01",
              "end": "2014-06-30",
              "val": 0,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 0,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": 0,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 0,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 0,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": 0,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2018Q2"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 29782000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": -29782000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 29782000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 29782000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 0,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 0,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2019Q2"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 0,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 0,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": 0,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2"
            },
            {
              "start": "2022-10-01",
              "end": "2022-12-31",
              "val": 1800000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2022Q4"
            },
            {
              "start": "2025-07-01",
              "end": "2025-09-30",
              "val": 23100000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q3"
            }
          ]
        }
      },
      "Assets": {
        "label": "Assets",
        "description": "Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.",
        "units": {
          "USD": [
            {
              "end": "2009-12-31",
              "val": 355240000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "end": "2009-12-31",
              "val": 355240000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "end": "2009-12-31",
              "val": 355240000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "end": "2009-12-31",
              "val": 355240000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009Q4I"
            },
            {
              "end": "2010-06-30",
              "val": 408692000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2010Q2I"
            },
            {
              "end": "2010-09-30",
              "val": 445235000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2010Q3I"
            },
            {
              "end": "2010-12-31",
              "val": 476943000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "end": "2010-12-31",
              "val": 476943000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "end": "2010-12-31",
              "val": 476943000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2010-12-31",
              "val": 476943000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2010-12-31",
              "val": 476943000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-03-31",
              "val": 496982000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "end": "2011-03-31",
              "val": 499050000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2011Q1I"
            },
            {
              "end": "2011-06-30",
              "val": 547049000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2011-06-30",
              "val": 552423000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 585920000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2011-09-30",
              "val": 591908000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 649264000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 649264000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2011-12-31",
              "val": 649264000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "end": "2011-12-31",
              "val": 649264000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "end": "2011-12-31",
              "val": 649264000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 670436000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2012-03-31",
              "val": 678479000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 744163000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 768164000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 756312000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 756312000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "end": "2012-12-31",
              "val": 756312000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "end": "2012-12-31",
              "val": 756312000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "end": "2012-12-31",
              "val": 756312000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 726245000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 703894000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 759206000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 832147000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 832147000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "end": "2013-12-31",
              "val": 832147000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "end": "2013-12-31",
              "val": 832147000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "end": "2013-12-31",
              "val": 832147000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 885641000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 885433000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 948289000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 987997000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 987997000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2014-12-31",
              "val": 987997000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2014-12-31",
              "val": 987997000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "end": "2014-12-31",
              "val": 987997000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 1028405000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 1028581000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 1079562000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 1158633000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 1158633000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2015-12-31",
              "val": 1158633000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2015-12-31",
              "val": 1158633000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "end": "2015-12-31",
              "val": 1158633000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 1207560000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 1251273000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 1358893000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 1396151000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 1396151000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "end": "2016-12-31",
              "val": 1396151000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
              "val": 1396151000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "end": "2016-12-31",
              "val": 1396151000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 1459293000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 1551187000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 1697623000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 1777856000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 1784009000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 1784009000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 1784009000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 1784009000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 1782731000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 1916589000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 1928405000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 2052458000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 2052458000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 2052458000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 2052458000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 2052458000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 2234430000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 2346017000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 2350380000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 2500702000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 2500702000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2019-12-31",
              "val": 2500702000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2019-12-31",
              "val": 2500702000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2019-12-31",
              "val": 2500702000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 3964840000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-06-30",
              "val": 4025857000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 4415091000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 4829683000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 4829683000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2020-12-31",
              "val": 4829683000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2020-12-31",
              "val": 4829683000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2020-12-31",
              "val": 4829683000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 5069782000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 5395568000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 5650109000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 5942110000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 5942110000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 5942110000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 5942110000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 5942110000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 5943414000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 5810119000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 5912802000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 5947947000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 5947947000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 5947947000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 5947947000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 5947947000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 5901448000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 6144550000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 6318551000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 6083877000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 6083877000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 6083877000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 6083877000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 6083877000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 6155754000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 6158324000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 6365974000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 6214600000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 6214600000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2024-12-31",
              "val": 6214600000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2024-12-31",
              "val": 6214600000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2024-12-31",
              "val": 6214600000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 6102820000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 6219094000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 6233552000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 6233693000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2025-12-31",
              "val": 6233693000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 6233693000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 6314173000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 6417581000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "AssetsCurrent": {
        "label": "Assets, Current",
        "description": "Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.",
        "units": {
          "USD": [
            {
              "end": "2009-12-31",
              "val": 261299000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "end": "2009-12-31",
              "val": 261299000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "end": "2009-12-31",
              "val": 261299000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2009Q4I"
            },
            {
              "end": "2010-06-30",
              "val": 331097000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2010Q2I"
            },
            {
              "end": "2010-09-30",
              "val": 357942000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2010Q3I"
            },
            {
              "end": "2010-12-31",
              "val": 388611000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "end": "2010-12-31",
              "val": 388611000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "end": "2010-12-31",
              "val": 388611000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2010-12-31",
              "val": 388611000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2010-12-31",
              "val": 388611000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-03-31",
              "val": 417941000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2011Q1I"
            },
            {
              "end": "2011-06-30",
              "val": 286573000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 327134000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 384816000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 384816000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2011-12-31",
              "val": 384816000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "end": "2011-12-31",
              "val": 384816000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "end": "2011-12-31",
              "val": 384816000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 385496000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 435135000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 484246000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 485793000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 485793000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "end": "2012-12-31",
              "val": 485793000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "end": "2012-12-31",
              "val": 485793000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "end": "2012-12-31",
              "val": 485793000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 527331000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 442093000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 482259000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 544676000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 544676000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "end": "2013-12-31",
              "val": 544676000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "end": "2013-12-31",
              "val": 544676000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "end": "2013-12-31",
              "val": 544676000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 552177000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 554512000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 615672000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 657160000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 657160000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2014-12-31",
              "val": 657160000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2014-12-31",
              "val": 657160000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "end": "2014-12-31",
              "val": 657160000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 657312000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 657906000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 711733000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 732010000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 732010000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2015-12-31",
              "val": 732010000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2015-12-31",
              "val": 732010000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "end": "2015-12-31",
              "val": 732010000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 783003000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 825407000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 911768000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 952978000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 952978000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "end": "2016-12-31",
              "val": 952978000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
              "val": 952978000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "end": "2016-12-31",
              "val": 952978000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 918167000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 1003222000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 1101003000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 1157003000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 1158367000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 1158367000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 1158367000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 1158367000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 1168776000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 1260999000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 1224182000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 1302479000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 1302479000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 1302479000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 1302479000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 1302479000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 1439113000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 1457374000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 1505579000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 1633419000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 1633419000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2019-12-31",
              "val": 1633419000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2019-12-31",
              "val": 1633419000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2019-12-31",
              "val": 1633419000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 1576525000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-06-30",
              "val": 1149244000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 1473247000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 1849538000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 1849538000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2020-12-31",
              "val": 1849538000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2020-12-31",
              "val": 1849538000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2020-12-31",
              "val": 1849538000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 2115555000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 2231825000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 2455307000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 2494075000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 2494075000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 2494075000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 2494075000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 2494075000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 2480768000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 2376804000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 2500580000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 2424391000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 2424391000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 2424391000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 2424391000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 2424391000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 2331882000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 2465456000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 2701804000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 2446618000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 2446618000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 2446618000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 2446618000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 2446618000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 2479314000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 2412372000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 2597387000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 2492441000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 2492441000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2024-12-31",
              "val": 2492441000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2024-12-31",
              "val": 2492441000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2024-12-31",
              "val": 2492441000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 2402029000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 2448058000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 2534094000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 2616562000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2025-12-31",
              "val": 2616562000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 2616562000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 2655430000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 2663049000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "AvailableForSaleSecurities": {
        "label": "Available-for-sale Securities",
        "description": "Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.",
        "units": {
          "USD": [
            {
              "end": "2012-12-31",
              "val": 49737000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "end": "2012-12-31",
              "val": 49737000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "end": "2012-12-31",
              "val": 49737000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 48655000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 176818000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 224576000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 229018000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "end": "2013-12-31",
              "val": 229018000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "end": "2013-12-31",
              "val": 229018000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 322606000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 335207000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 380837000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 402679000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2014-12-31",
              "val": 402679000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2014-12-31",
              "val": 402679000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 422994000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 434950000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 455961000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 510951000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2015-12-31",
              "val": 510951000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2015-12-31",
              "val": 510951000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 526350000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 517265000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 255838000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 310764000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "end": "2016-12-31",
              "val": 310764000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
              "val": 310764000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 383133000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 318405000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 375296000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 311979000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 311979000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 311979000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 174952000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 172690000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 192388000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 107572000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 107572000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 107572000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 144540000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 342391000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 292011000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            }
          ]
        }
      },
      "AvailableForSaleSecuritiesCurrent": {
        "label": "Available-for-sale Securities, Current",
        "description": "Amount of investment in debt and equity securities categorized neither as trading securities nor held-to-maturity securities and intended be sold or mature one year or operating cycle, if longer.",
        "units": {
          "USD": [
            {
              "end": "2012-12-31",
              "val": 28485000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "end": "2012-12-31",
              "val": 28485000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "end": "2012-12-31",
              "val": 28485000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 37975000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 113933000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 147740000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 127040000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "end": "2013-12-31",
              "val": 127040000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "end": "2013-12-31",
              "val": 127040000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 183677000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 198059000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 244820000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 254787000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2014-12-31",
              "val": 254787000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2014-12-31",
              "val": 254787000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 254823000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 276789000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 310715000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 359581000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2015-12-31",
              "val": 359581000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2015-12-31",
              "val": 359581000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 393660000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 404107000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 193018000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 250981000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "end": "2016-12-31",
              "val": 250981000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
              "val": 250981000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 284559000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 243786000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 316454000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 272031000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 272031000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 272031000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 164740000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 164629000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 184297000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 98460000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 98460000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 98460000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 144540000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 297422000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 292011000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            }
          ]
        }
      },
      "AvailableForSaleSecuritiesDebtSecuritiesCurrent": {
        "label": "Debt Securities, Available-for-sale, Current",
        "description": "Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), classified as current.",
        "units": {
          "USD": [
            {
              "end": "2010-12-31",
              "val": 8615000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2010-12-31",
              "val": 8615000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2010-12-31",
              "val": 8615000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-06-30",
              "val": 6755000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 8185000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 7395000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 7395000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2011-12-31",
              "val": 7395000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "end": "2011-12-31",
              "val": 7395000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "end": "2011-12-31",
              "val": 7395000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 16018000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 20752000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 23142000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 28485000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 28485000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "end": "2012-12-31",
              "val": 28485000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "end": "2012-12-31",
              "val": 28485000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "end": "2012-12-31",
              "val": 28485000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 37975000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 113933000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 147740000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 127040000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 127040000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "end": "2013-12-31",
              "val": 127040000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "end": "2013-12-31",
              "val": 127040000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "end": "2013-12-31",
              "val": 127040000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 183677000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 198059000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 244820000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 254787000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 254787000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2014-12-31",
              "val": 254787000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2014-12-31",
              "val": 254787000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "end": "2014-12-31",
              "val": 254787000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 254823000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 276789000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 310715000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 359581000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 359581000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2015-12-31",
              "val": 359581000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2015-12-31",
              "val": 359581000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "end": "2015-12-31",
              "val": 359581000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 393660000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 404107000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 193018000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 250981000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 250981000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "end": "2016-12-31",
              "val": 250981000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
              "val": 250981000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "end": "2016-12-31",
              "val": 250981000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 284559000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 243786000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 316454000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 272031000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 272031000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 272031000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 272031000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 272031000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 164740000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 164629000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 184297000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 98460000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 98460000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 98460000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 98460000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 98460000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 144540000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 297422000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 292011000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 318202000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 318202000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2019-12-31",
              "val": 318202000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2019-12-31",
              "val": 318202000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2019-12-31",
              "val": 318202000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 0,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-06-30",
              "val": 0,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 0,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 0,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 0,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-12-31",
              "val": 71972000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 71972000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 71972000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 71972000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 71972000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 86749000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 22138000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 46242000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 57534000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 57534000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 57534000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 57534000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 57534000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 51644000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 55805000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 44792000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 35304000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 35304000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 35304000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 35304000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 35304000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 33101000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 20682000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 0,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 0,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2024Q4I"
            }
          ]
        }
      },
      "AvailableForSaleSecuritiesDebtSecuritiesNoncurrent": {
        "label": "Debt Securities, Available-for-sale, Noncurrent",
        "description": "Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), classified as noncurrent.",
        "units": {
          "USD": [
            {
              "end": "2010-12-31",
              "val": 9089000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2010-12-31",
              "val": 9089000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2010-12-31",
              "val": 9089000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-06-30",
              "val": 4112000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 677000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 0,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "end": "2011-12-31",
              "val": 0,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "end": "2011-12-31",
              "val": 0,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 16804000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 20475000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 20802000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 21252000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 21252000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "end": "2012-12-31",
              "val": 21252000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "end": "2012-12-31",
              "val": 21252000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "end": "2012-12-31",
              "val": 21252000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 10680000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 62885000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 76836000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 101978000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 101978000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "end": "2013-12-31",
              "val": 101978000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "end": "2013-12-31",
              "val": 101978000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "end": "2013-12-31",
              "val": 101978000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 138929000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 137148000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 136017000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 147892000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 147892000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2014-12-31",
              "val": 147892000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2014-12-31",
              "val": 147892000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "end": "2014-12-31",
              "val": 147892000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 168171000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 158161000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 145246000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 151370000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 151370000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2015-12-31",
              "val": 151370000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2015-12-31",
              "val": 151370000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "end": "2015-12-31",
              "val": 151370000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 132690000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 113158000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 62820000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 59783000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 59783000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "end": "2016-12-31",
              "val": 59783000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
              "val": 59783000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "end": "2016-12-31",
              "val": 59783000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 98574000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 74619000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 58842000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 39948000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 39948000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 39948000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 39948000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 39948000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 10212000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 8061000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 8091000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 9112000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 9112000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 9112000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 9112000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 9112000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 0,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 44969000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 0,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 0,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-12-31",
              "val": 0,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-12-31",
              "val": 125320000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 125320000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 125320000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 125320000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 125320000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 107695000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 77551000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 50256000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 41978000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 41978000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 41978000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 41978000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 41978000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 37379000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 26023000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 18137000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 8022000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 8022000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 8022000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 8022000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 8022000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 3619000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 0,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 0,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 0,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2024Q4I"
            }
          ]
        }
      },
      "AvailableForSaleSecuritiesFairValueDisclosure": {
        "label": "Available-for-sale Securities, Fair Value Disclosure (Deprecated 2013-01-31)",
        "description": "This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents Available-for-sale Securities which consist of all investments in certain debt and equity securities neither classified as trading or held-to-maturity securities. A debt security represents a creditor relationship with an enterprise. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, convertible debt, commercial paper, and all securitized debt instruments. An equity security represents an ownership interest in an enterprise or the right to acquire or dispose of an ownership interest in an enterprise at fixed or determinable prices. Equity securities include, among other things, common stock, certain preferred stock, warrant rights, call options, and put options, but do not include convertible debt. An entity may opt to provide the reader with additional narrative text to better understand the nature of investments in debt and equity securities which are categorized as Available-for-sale.",
        "units": {
          "USD": [
            {
              "end": "2011-06-30",
              "val": 64191000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2I"
            }
          ]
        }
      },
      "AvailableForSaleSecuritiesGrossRealizedGainLossNet": {
        "label": "Available-for-sale Securities, Gross Realized Gain (Loss)",
        "description": "This item represents the difference between the gross realized gains and losses realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities. Additionally, this item would include any losses recognized for other than temporary impairments (OTTI) of the subject investments in debt and equity securities.",
        "units": {
          "USD": [
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 0,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2010-04-01",
              "end": "2010-06-30",
              "val": 0,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2010Q2"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 0,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-04-01",
              "end": "2011-06-30",
              "val": 0,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2"
            }
          ]
        }
      },
      "AvailableForSaleSecuritiesNoncurrent": {
        "label": "Available-for-sale Securities, Noncurrent",
        "description": "Investments in debt and equity securities which are categorized neither as held-to-maturity nor trading and which are intended to be sold or mature more than one year from the balance sheet date or operating cycle, if longer. Such securities are reported at fair value; unrealized gains (losses) related to Available-for-sale Securities are excluded from earnings and reported in a separate component of shareholders' equity (other comprehensive income), unless the Available-for-sale security is designated as a hedge or is determined to have had an other than temporary decline in fair value below its amortized cost basis. All or a portion of the unrealized holding gain (loss) of an Available-for-sale security that is designated as being hedged in a fair value hedge is recognized in earnings during the period of the hedge, as are other than temporary declines in fair value below the cost basis for investments in equity securities and debt securities that an entity intends to sell or it is more likely than not that it will be required to sell before the recovery of its amortized cost basis. Other than temporary declines in fair value below the cost basis for debt securities categorized as Available-for-sale that an entity does not intend to sell and for which it is not more likely than not that the entity will be required to sell before the recovery of its amortized cost basis are bifurcated into credit losses and losses related to all other factors. Other than temporary declines in fair value below cost basis related to credit losses are recognized in earnings, and losses related to all other factors are recognized in other comprehensive income.",
        "units": {
          "USD": [
            {
              "end": "2012-12-31",
              "val": 21252000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "end": "2012-12-31",
              "val": 21252000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "end": "2012-12-31",
              "val": 21252000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 10680000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 62885000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 76836000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 101978000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "end": "2013-12-31",
              "val": 101978000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "end": "2013-12-31",
              "val": 101978000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 138929000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 137148000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 136017000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 147892000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2014-12-31",
              "val": 147892000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2014-12-31",
              "val": 147892000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 168171000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 158161000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 145246000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 151370000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2015-12-31",
              "val": 151370000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2015-12-31",
              "val": 151370000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 132690000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 113158000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 62820000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 59783000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "end": "2016-12-31",
              "val": 59783000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
              "val": 59783000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 98574000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 74619000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 58842000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 39948000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 39948000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 39948000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 10212000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 8061000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 8091000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 9112000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 9112000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 9112000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 0,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 44969000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 0,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            }
          ]
        }
      },
      "BusinessAcquisitionCostOfAcquiredEntityPurchasePrice": {
        "label": "Business Acquisition, Cost of Acquired Entity, Purchase Price (Deprecated 2013-01-31)",
        "description": "The total cost of the acquired entity including the cash paid to shareholders of acquired entities, fair value of debt and equity securities issued to shareholders of acquired entities, the fair value of the liabilities assumed, and direct costs of the acquisition.",
        "units": {
          "USD": [
            {
              "end": "2011-04-29",
              "val": 187600000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q1I"
            },
            {
              "end": "2011-09-30",
              "val": 187000000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 187600000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 187600000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 187600000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 187600000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            }
          ]
        }
      },
      "BusinessAcquisitionCostOfAcquiredEntityTransactionCosts": {
        "label": "Business Acquisition, Transaction Costs",
        "description": "Amount of direct costs of the business combination including legal, accounting, and other costs incurred to consummate the business acquisition.",
        "units": {
          "USD": [
            {
              "end": "2011-04-29",
              "val": 6400000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q1I"
            },
            {
              "end": "2011-09-30",
              "val": 6400000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 6400000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 6400000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            }
          ]
        }
      },
      "BusinessAcquisitionPurchasePriceAllocationAssetsAcquired": {
        "label": "Business Acquisition, Purchase Price Allocation, Assets Acquired (Deprecated 2013-01-31)",
        "description": "The amount of acquisition cost of a business combination allocated to assets acquired.",
        "units": {
          "USD": [
            {
              "end": "2011-04-29",
              "val": 15745000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2011-04-29",
              "val": 15745000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-04-29",
              "val": 16161000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2011-04-29",
              "val": 16161000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2011-04-29",
              "val": 15745000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q1I"
            },
            {
              "end": "2011-04-29",
              "val": 15745000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "end": "2011-04-29",
              "val": 15745000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            }
          ]
        }
      },
      "BusinessAcquisitionPurchasePriceAllocationAssetsAcquiredLiabilitiesAssumedNet": {
        "label": "Business Acquisition, Purchase Price Allocation, Assets Acquired (Liabilities Assumed), Net (Deprecated 2013-01-31)",
        "description": "The total purchase price of the acquired entity. This includes cash paid to equity interest holders of the acquired entity, fair value of debt and equity securities issued to equity holders of the acquired entity, and transaction costs paid to third parties to consummate the acquisition.",
        "units": {
          "USD": [
            {
              "end": "2011-04-29",
              "val": 187588000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2011-04-29",
              "val": 187588000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-04-29",
              "val": 187000000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2011-04-29",
              "val": 187000000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2011-04-29",
              "val": 187588000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q1I"
            },
            {
              "end": "2011-04-29",
              "val": 187588000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "end": "2011-04-29",
              "val": 187588000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            }
          ]
        }
      },
      "BusinessAcquisitionPurchasePriceAllocationGoodwillAmount": {
        "label": "Business Acquisition, Purchase Price Allocation, Goodwill Amount (Deprecated 2013-01-31)",
        "description": "Amount of goodwill arising from a business combination, which is the excess of the cost of the acquired entity over the amounts assigned to assets acquired and liabilities assumed.",
        "units": {
          "USD": [
            {
              "end": "2011-04-29",
              "val": 135349000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2011-04-29",
              "val": 134905000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-04-29",
              "val": 135265000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2011-04-29",
              "val": 135290000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2011-04-29",
              "val": 135349000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q1I"
            },
            {
              "end": "2011-04-29",
              "val": 135349000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "end": "2011-04-29",
              "val": 135349000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "end": "2011-09-30",
              "val": 135265000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2012-03-31",
              "val": 135800000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            }
          ]
        }
      },
      "BusinessAcquisitionPurchasePriceAllocationLiabilitiesAssumed": {
        "label": "Business Acquisition, Purchase Price Allocation, Liabilities Assumed (Deprecated 2013-01-31)",
        "description": "The amount of acquisition cost of a business combination allocated to liabilities assumed.",
        "units": {
          "USD": [
            {
              "end": "2011-04-29",
              "val": 20330000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2011-04-29",
              "val": 19886000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-04-29",
              "val": 20171000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2011-04-29",
              "val": 20180000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2011-04-29",
              "val": 20330000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q1I"
            },
            {
              "end": "2011-04-29",
              "val": 20330000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "end": "2011-04-29",
              "val": 20330000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            }
          ]
        }
      },
      "BusinessAcquisitionPurchasePriceAllocationNoncurrentLiabilitiesRestructuringCostAccrual": {
        "label": "Business Acquisition, Purchase Price Allocation, Noncurrent Liabilities, Restructuring Cost Accrual (Deprecated 2013-01-31)",
        "description": "The amount of acquisition cost of a business combination allocated to a known and estimated obligation to restructure a portion of the acquired entity through a plan to exit an activity of the acquired entity, involuntarily terminate employees of the acquired entity, and relocate employees of the acquired entity.",
        "units": {
          "USD": [
            {
              "end": "2011-12-31",
              "val": 2200000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 2200000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 2700000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2012Q4I"
            }
          ]
        }
      },
      "BusinessAcquisitionPurchasePriceAllocationPropertyPlantAndEquipment": {
        "label": "Business Acquisition, Purchase Price Allocation, Property, Plant and Equipment (Deprecated 2013-01-31)",
        "description": "The amount of acquisition cost of a business combination allocated to property, plant and equipment to be used in ongoing operations.",
        "units": {
          "USD": [
            {
              "end": "2011-04-29",
              "val": 3624000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2011-04-29",
              "val": 3624000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-04-29",
              "val": 3645000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2011-04-29",
              "val": 3629000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2011-04-29",
              "val": 3624000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q1I"
            },
            {
              "end": "2011-04-29",
              "val": 3624000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "end": "2011-04-29",
              "val": 3624000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            }
          ]
        }
      },
      "BusinessAcquisitionsProFormaNetIncomeLoss": {
        "label": "Business Acquisition, Pro Forma Net Income (Loss)",
        "description": "The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.",
        "units": {
          "USD": [
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 46310000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2010-04-01",
              "end": "2010-06-30",
              "val": 32126000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2010Q2"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 62498000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2010-07-01",
              "end": "2010-09-30",
              "val": 16188000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2010Q3"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 69952000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 69952000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 14587000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2011Q1"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 22703000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 22703000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2011-04-01",
              "end": "2011-06-30",
              "val": 8116000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-04-01",
              "end": "2011-06-30",
              "val": 8116000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2011Q2"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 41967000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 41967000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": 19264000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": 19264000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2011Q3"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 62116000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 62416000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 62116000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            }
          ]
        }
      },
      "BusinessAcquisitionsProFormaRevenue": {
        "label": "Business Acquisition, Pro Forma Revenue",
        "description": "The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.",
        "units": {
          "USD": [
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 217192000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2010-04-01",
              "end": "2010-06-30",
              "val": 117695000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2010Q2"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 322788000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2010-07-01",
              "end": "2010-09-30",
              "val": 105596000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2010Q3"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 425025000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 425025000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 114042000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2011Q1"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 237669000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 237669000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2011-04-01",
              "end": "2011-06-30",
              "val": 123626000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-04-01",
              "end": "2011-06-30",
              "val": 123626000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2011Q2"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 363563000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 363563000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": 125894000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": 125894000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2011Q3"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 492468000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 492468000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 492468000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            }
          ]
        }
      },
      "BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual": {
        "label": "Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual",
        "description": "This element represents the amount of earnings or loss of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.",
        "units": {
          "USD": [
            {
              "start": "2011-05-01",
              "end": "2011-06-30",
              "val": 3100000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2"
            },
            {
              "start": "2011-04-30",
              "end": "2011-09-30",
              "val": 6200000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-04-30",
              "end": "2011-12-31",
              "val": 6500000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-04-30",
              "end": "2011-12-31",
              "val": 6500000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 10400000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2012"
            }
          ]
        }
      },
      "BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual": {
        "label": "Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual",
        "description": "This element represents the amount of revenue of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.",
        "units": {
          "USD": [
            {
              "start": "2011-05-01",
              "end": "2011-06-30",
              "val": 6400000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-05-01",
              "end": "2011-06-30",
              "val": 18100000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2011Q2"
            },
            {
              "start": "2011-05-01",
              "end": "2011-06-30",
              "val": 6400000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2011-04-30",
              "end": "2011-09-30",
              "val": 18100000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-04-30",
              "end": "2011-12-31",
              "val": 28000000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-04-30",
              "end": "2011-12-31",
              "val": 28000000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 11800000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 23700000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": 12000000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 33500000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 9800000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 43500000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2012"
            }
          ]
        }
      },
      "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssets": {
        "label": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets",
        "description": "Amount of assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer, acquired at the acquisition date.",
        "units": {
          "USD": [
            {
              "end": "2011-04-29",
              "val": 15745000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011Q1I"
            }
          ]
        }
      },
      "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities": {
        "label": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities",
        "description": "Amount of liabilities assumed at the acquisition date.",
        "units": {
          "USD": [
            {
              "end": "2011-04-29",
              "val": 20330000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011Q1I"
            }
          ]
        }
      },
      "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet": {
        "label": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net",
        "description": "Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed.",
        "units": {
          "USD": [
            {
              "end": "2011-04-29",
              "val": 187588000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011Q1I"
            }
          ]
        }
      },
      "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment": {
        "label": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment",
        "description": "The amount of property, plant, and equipment recognized as of the acquisition date.",
        "units": {
          "USD": [
            {
              "end": "2011-04-29",
              "val": 3624000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011Q1I"
            }
          ]
        }
      },
      "CapitalExpendituresIncurredButNotYetPaid": {
        "label": "Capital Expenditures Incurred but Not yet Paid",
        "description": "Future cash outflow to pay for purchases of fixed assets that have occurred.",
        "units": {
          "USD": [
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 1790000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 906000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 906000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 1611000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 1611000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 1611000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 940000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 940000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 940000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 2308000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 2308000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 2308000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 4899000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 4899000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 4899000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 9285000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 14636000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 14636000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 10842000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 10009000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 9709000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 4434000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 4434000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 4434000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 7662000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 7662000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 20291000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 20291000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 21992000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 21992000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 15105000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 15105000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 15105000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 18739000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 18739000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 20854000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 20854000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 24281000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 24281000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 15069000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 15069000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 15069000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 13113000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 13113000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 12202000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 12202000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 14331000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 14331000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 16488000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 16488000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 16488000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 24121000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 24121000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 13199000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 13199000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 43147000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 43147000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 37267000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 37267000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 37267000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 45354000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 45354000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 133530000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 133530000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 72531000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 72531000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 64135000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 64135000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 64135000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 58876000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 58876000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 60115000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 60115000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 41255000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 41255000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 35767000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 35767000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 35767000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 30907000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 30907000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 20648000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 20648000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 25979000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 25979000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 32280000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 32280000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 32280000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 21284000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 21284000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 16657000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 16657000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 17631000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 17631000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 18974000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 18974000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 13851000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 13851000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 12995000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 12995000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 11997000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 16592000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": 14444000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": 17185000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            }
          ]
        }
      },
      "CapitalizedComputerSoftwareGross": {
        "label": "Capitalized Computer Software, Gross",
        "description": "Amount before accumulated amortization of capitalized costs for computer software, including but not limited to, acquired and internally developed computer software.",
        "units": {
          "USD": [
            {
              "end": "2015-12-31",
              "val": 25400000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 13200000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 13200000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 2700000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2024-12-31",
              "val": 23100000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 38500000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025Q4I"
            }
          ]
        }
      },
      "CapitalizedContractCostAmortization": {
        "label": "Capitalized Contract Cost, Amortization",
        "description": "Amount of amortization expense for asset recognized from cost incurred to obtain or fulfill contract with customer.",
        "units": {
          "USD": [
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 5400000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 7200000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 7200000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 10100000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 10100000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 10100000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 17000000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 17000000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 17000000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 20800000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 20800000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 20800000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 12500000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 12500000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 12500000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 18700000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 18700000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 15600000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            }
          ]
        }
      },
      "CapitalizedContractCostNet": {
        "label": "Capitalized Contract Cost, Net",
        "description": "Amount, after accumulated amortization and accumulated impairment loss, of asset recognized from cost incurred to obtain or fulfill contract with customer.",
        "units": {
          "USD": [
            {
              "end": "2017-12-31",
              "val": 5515000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 5515000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 5514000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-06-30",
              "val": 7947000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 8651000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 9185000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 9185000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 10747000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-12-31",
              "val": 15100000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-12-31",
              "val": 22800000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 22800000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-12-31",
              "val": 31100000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 31100000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-12-31",
              "val": 27400000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 27400000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-12-31",
              "val": 25100000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 25100000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-12-31",
              "val": 25800000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 25800000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 29200000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025Q4I"
            }
          ]
        }
      },
      "CashAndCashEquivalentsAtCarryingValue": {
        "label": "Cash and Cash Equivalents, at Carrying Value",
        "description": "Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.",
        "units": {
          "USD": [
            {
              "end": "2007-12-31",
              "val": 89119000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2007Q4I"
            },
            {
              "end": "2008-12-31",
              "val": 87100000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "end": "2008-12-31",
              "val": 87100000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "end": "2008-12-31",
              "val": 87100000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "end": "2008-12-31",
              "val": 87100000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2008Q4I"
            },
            {
              "end": "2009-06-30",
              "val": 122182000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2009Q2I"
            },
            {
              "end": "2009-09-30",
              "val": 135961000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2009Q3I"
            },
            {
              "end": "2009-12-31",
              "val": 166487000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "end": "2009-12-31",
              "val": 166487000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "end": "2009-12-31",
              "val": 166487000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "end": "2009-12-31",
              "val": 166487000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "end": "2009-12-31",
              "val": 166487000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2009-12-31",
              "val": 166487000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2009-12-31",
              "val": 166487000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2009-12-31",
              "val": 166487000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2009Q4I"
            },
            {
              "end": "2010-03-31",
              "val": 190407000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2010Q1I"
            },
            {
              "end": "2010-06-30",
              "val": 235801000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "end": "2010-06-30",
              "val": 235801000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2010Q2I"
            },
            {
              "end": "2010-09-30",
              "val": 264924000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "end": "2010-09-30",
              "val": 264924000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2010Q3I"
            },
            {
              "end": "2010-12-31",
              "val": 294664000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "end": "2010-12-31",
              "val": 294664000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "end": "2010-12-31",
              "val": 294664000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2010-12-31",
              "val": 294664000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2010-12-31",
              "val": 294664000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2010-12-31",
              "val": 294664000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2010-12-31",
              "val": 294664000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "end": "2010-12-31",
              "val": 294664000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "end": "2010-12-31",
              "val": 294664000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2010-12-31",
              "val": 294664000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-03-31",
              "val": 308608000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "end": "2011-03-31",
              "val": 308608000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2011Q1I"
            },
            {
              "end": "2011-06-30",
              "val": 168607000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2011-06-30",
              "val": 168607000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 202229000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2011-09-30",
              "val": 202229000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 240675000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 240675000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2011-12-31",
              "val": 240675000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "end": "2011-12-31",
              "val": 240675000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "end": "2011-12-31",
              "val": 240675000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2011-12-31",
              "val": 240675000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "end": "2011-12-31",
              "val": 240675000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "end": "2011-12-31",
              "val": 240675000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "end": "2011-12-31",
              "val": 240675000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2011-12-31",
              "val": 240675000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2011-12-31",
              "val": 306386000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 224361000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2012-03-31",
              "val": 224361000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 262799000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "end": "2012-06-30",
              "val": 262799000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 304907000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "end": "2012-09-30",
              "val": 304907000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 306386000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 306386000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "end": "2012-12-31",
              "val": 306386000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "end": "2012-12-31",
              "val": 306386000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "end": "2012-12-31",
              "val": 306386000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2012-12-31",
              "val": 306386000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "end": "2012-12-31",
              "val": 306386000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "end": "2012-12-31",
              "val": 306386000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "end": "2012-12-31",
              "val": 306386000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 328745000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "end": "2013-03-31",
              "val": 328745000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 164497000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "end": "2013-06-30",
              "val": 164497000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 175839000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "end": "2013-09-30",
              "val": 175839000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 242953000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 242953000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "end": "2013-12-31",
              "val": 242953000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "end": "2013-12-31",
              "val": 242953000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "end": "2013-12-31",
              "val": 242953000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2013-12-31",
              "val": 242953000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2013-12-31",
              "val": 242953000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2013-12-31",
              "val": 242953000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "end": "2013-12-31",
              "val": 242953000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2013-12-31",
              "val": 242953000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 182766000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "end": "2014-03-31",
              "val": 182766000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2014-03-31",
              "val": 167471000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 167471000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 180676000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "end": "2014-09-30",
              "val": 180676000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 199871000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 199871000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2014-12-31",
              "val": 199871000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2014-12-31",
              "val": 199871000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "end": "2014-12-31",
              "val": 199871000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2014-12-31",
              "val": 199871000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2014-12-31",
              "val": 199871000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2014-12-31",
              "val": 199871000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "end": "2014-12-31",
              "val": 199871000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2014-12-31",
              "val": 199871000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 189978000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2015-03-31",
              "val": 189978000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2015-03-31",
              "val": 161753000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2015-03-31",
              "val": 174040000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 161753000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 174040000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 167714000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 167714000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2015-12-31",
              "val": 167714000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2015-12-31",
              "val": 167714000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "end": "2015-12-31",
              "val": 167714000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2015-12-31",
              "val": 167714000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "end": "2015-12-31",
              "val": 167714000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2015-12-31",
              "val": 167714000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "end": "2015-12-31",
              "val": 167714000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 154418000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2016-03-31",
              "val": 154418000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 167706000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2016-06-30",
              "val": 167706000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 419948000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "end": "2016-09-30",
              "val": 419948000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 389275000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 389275000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "end": "2016-12-31",
              "val": 389275000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
              "val": 389275000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "end": "2016-12-31",
              "val": 389275000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 261027000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 358182000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 362613000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 449511000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 449511000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 449511000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 449511000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 449511000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 498003000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 547993000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 420860000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 636899000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 636899000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 636899000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 636899000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 636899000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 588001000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 423500000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 490362000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 550425000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 550425000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2019-12-31",
              "val": 550425000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2019-12-31",
              "val": 550425000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2019-12-31",
              "val": 550425000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 790696000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-06-30",
              "val": 404359000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 615532000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 960843000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 960843000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2020-12-31",
              "val": 960843000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2020-12-31",
              "val": 960843000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2020-12-31",
              "val": 960843000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 1131698000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 1086357000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 1237822000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 1099370000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 1099370000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 1099370000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 1099370000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 1099370000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 926119000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 877501000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 1044523000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 942050000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 942050000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 942050000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 942050000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 942050000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 832383000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 951956000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 1239013000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 937438000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 937438000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 937438000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 937438000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 937438000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 865805000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 761429000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 1041935000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 1043887000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 1043887000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2024-12-31",
              "val": 1043887000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2024-12-31",
              "val": 1043887000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2024-12-31",
              "val": 1043887000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 873012000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 901157000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 1004589000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 1094908000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2025-12-31",
              "val": 1094908000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 1094908000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 1059834000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 1102591000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "CashAndCashEquivalentsPeriodIncreaseDecrease": {
        "label": "Cash and Cash Equivalents, Period Increase (Decrease)",
        "description": "Amount of increase (decrease) in cash and cash equivalents. Cash and cash equivalents are the amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Includes effect from exchange rate changes.",
        "units": {
          "USD": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": -2019000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2009-01-01",
              "end": "2009-06-30",
              "val": 35082000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2009-01-01",
              "end": "2009-09-30",
              "val": 48861000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 79387000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 79387000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-03-31",
              "val": 23920000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2010Q1"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 69314000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 69314000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 98437000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 98437000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 128177000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 128177000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 128177000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 13944000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 13944000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 13944000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2011Q1"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": -126057000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": -126057000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": -126057000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": -92435000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": -92435000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": -53989000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": -53989000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": -53989000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-30",
              "val": -16314000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": -16314000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": -16314000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": -16314000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 22124000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 22124000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 64232000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 64232000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 65711000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 65711000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 65711000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 22359000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 22359000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": -141889000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": -141889000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": -130547000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": -130547000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": -63433000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": -63433000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": -63433000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": -60187000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": -60187000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": -75482000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": -75482000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": -62277000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": -62277000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": -43082000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": -43082000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": -43082000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": -9893000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": -9893000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": -38118000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": -38118000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": -25831000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": -25831000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": -32157000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": -32157000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": -32157000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": -13296000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": -13296000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": -8000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": -8000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 252234000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 252234000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 221561000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 221561000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 221784000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": -128248000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": -131412000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": -31093000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": -34230000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": -26662000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": -29801000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 60236000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 57106000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017"
            }
          ]
        }
      },
      "CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents": {
        "label": "Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents",
        "description": "Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.",
        "units": {
          "USD": [
            {
              "end": "2015-12-31",
              "val": 171235000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 393019000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2016-12-31",
              "val": 393019000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2016-12-31",
              "val": 393019000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 393019000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-06-30",
              "val": 358789000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 363218000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 450125000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 450125000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 450125000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 450125000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2017-12-31",
              "val": 450125000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2017-12-31",
              "val": 450125000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2017-12-31",
              "val": 450125000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 450125000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 498619000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 548581000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2018-06-30",
              "val": 548581000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 421449000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2018-09-30",
              "val": 421449000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 637566000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 637566000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 637566000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 637566000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 637566000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 637566000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2018-12-31",
              "val": 637566000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2018-12-31",
              "val": 637566000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2018-12-31",
              "val": 637566000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2018-12-31",
              "val": 637566000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 588682000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2019-03-31",
              "val": 588682000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 424193000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2019-06-30",
              "val": 424193000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 491065000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2019-09-30",
              "val": 491065000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 551134000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 551134000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2019-12-31",
              "val": 551134000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2019-12-31",
              "val": 551134000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2019-12-31",
              "val": 551134000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2019-12-31",
              "val": 551134000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2019-12-31",
              "val": 551134000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2019-12-31",
              "val": 551134000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2019-12-31",
              "val": 551134000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2019-12-31",
              "val": 551134000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 791389000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2020-03-31",
              "val": 791389000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-06-30",
              "val": 404944000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2020-06-30",
              "val": 404944000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 616122000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2020-09-30",
              "val": 616122000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 961474000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 961474000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2020-12-31",
              "val": 961474000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2020-12-31",
              "val": 961474000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2020-12-31",
              "val": 961474000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2020-12-31",
              "val": 961474000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2020-12-31",
              "val": 961474000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2020-12-31",
              "val": 961474000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2020-12-31",
              "val": 961474000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2020-12-31",
              "val": 961474000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 1132305000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2021-03-31",
              "val": 1132305000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 1086978000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2021-06-30",
              "val": 1086978000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 1238450000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2021-09-30",
              "val": 1238450000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 1100139000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 1100139000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 1100139000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 1100139000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 1100139000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2021-12-31",
              "val": 1100139000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 1100139000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 1100139000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2021-12-31",
              "val": 1100139000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2021-12-31",
              "val": 1100139000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 926871000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2022-03-31",
              "val": 926871000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 878186000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2022-06-30",
              "val": 878186000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 1044738000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2022-09-30",
              "val": 1044738000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 942355000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 942355000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 942355000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 942355000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 942355000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2022-12-31",
              "val": 942355000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2022-12-31",
              "val": 942355000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2022-12-31",
              "val": 942355000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2022-12-31",
              "val": 942355000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2022-12-31",
              "val": 942355000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 832681000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2023-03-31",
              "val": 832681000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 952298000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2023-06-30",
              "val": 952298000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 1239350000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2023-09-30",
              "val": 1239350000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 938519000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 938519000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 938519000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 938519000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 938519000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 938519000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2023-12-31",
              "val": 938519000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2023-12-31",
              "val": 938519000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 938519000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 866879000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2024-03-31",
              "val": 866879000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 762462000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2024-06-30",
              "val": 762462000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 1042981000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2024-09-30",
              "val": 1042981000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 1044963000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 1044963000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2024-12-31",
              "val": 1044963000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2024-12-31",
              "val": 1044963000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2024-12-31",
              "val": 1044963000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2024-12-31",
              "val": 1044963000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2024-12-31",
              "val": 1044963000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 874074000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2025-03-31",
              "val": 874074000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 902342000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2025-06-30",
              "val": 902342000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 1005808000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 1096186000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2025-12-31",
              "val": 1096186000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 1096186000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 1061132000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 1103983000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect": {
        "label": "Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect",
        "description": "Amount of increase (decrease) in cash, cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; including effect from exchange rate change. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.",
        "units": {
          "USD": [
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 221784000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": -34230000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": -29801000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 57106000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 57106000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 48494000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 98456000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 98456000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": -28676000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": -28676000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 187441000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 187441000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 187441000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": -48884000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": -48884000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": -213373000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": -213373000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": -146501000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": -146501000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": -86432000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": -86432000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": -86432000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 240255000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 240255000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": -146190000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": -146190000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 64988000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 64988000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 410340000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 410340000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 410340000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 170831000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 170831000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 125504000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 125504000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 276976000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 276976000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 138665000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 138665000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 138665000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": -173268000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": -173268000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": -221953000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": -221953000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": -55401000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": -55401000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": -157784000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": -157784000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": -157784000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": -109674000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": -109674000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 9943000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 9943000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 296995000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 296995000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": -3836000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": -3836000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": -3836000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": -71640000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": -71640000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": -176057000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": -176057000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 104462000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 104462000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 106444000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 106444000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": -170889000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": -170889000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": -142621000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": -142621000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": -39155000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 51223000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": -35054000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": 7797000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            }
          ]
        }
      },
      "CommonStockParOrStatedValuePerShare": {
        "label": "Common Stock, Par or Stated Value Per Share",
        "description": "Face amount or stated value per share of common stock.",
        "units": {
          "USD/shares": [
            {
              "end": "2009-12-31",
              "val": 0.0001,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "end": "2009-12-31",
              "val": 0.0001,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "end": "2009-12-31",
              "val": 0.0001,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2009Q4I"
            },
            {
              "end": "2010-06-30",
              "val": 0.0001,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2010Q2I"
            },
            {
              "end": "2010-09-30",
              "val": 0.0001,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2010Q3I"
            },
            {
              "end": "2010-12-31",
              "val": 0.0001,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "end": "2010-12-31",
              "val": 0.0001,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "end": "2010-12-31",
              "val": 0.0001,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2010-12-31",
              "val": 0.0001,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2010-12-31",
              "val": 0.0001,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-03-31",
              "val": 0.0001,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2011Q1I"
            },
            {
              "end": "2011-06-30",
              "val": 0.0001,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 0.0001,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2011-09-30",
              "val": 0.0001,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 0.0001,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 0.0001,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2011-12-31",
              "val": 0.0001,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "end": "2011-12-31",
              "val": 0.0001,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 0.0001,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 0.0001,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 0.0001,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 0.0001,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 0.0001,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "end": "2012-12-31",
              "val": 0.0001,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "end": "2012-12-31",
              "val": 0.0001,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "end": "2012-12-31",
              "val": 0.0001,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 0.0001,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 0.0001,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 0.0001,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 0.0001,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 0.0001,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "end": "2013-12-31",
              "val": 0.0001,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "end": "2013-12-31",
              "val": 0.0001,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "end": "2013-12-31",
              "val": 0.0001,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 0.0001,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 0.0001,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 0.0001,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 0.0001,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 0.0001,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2014-12-31",
              "val": 0.0001,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2014-12-31",
              "val": 0.0001,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "end": "2014-12-31",
              "val": 0.0001,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 0.0001,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 0.0001,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 0.0001,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 0.0001,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 0.0001,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2015-12-31",
              "val": 0.0001,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2015-12-31",
              "val": 0.0001,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "end": "2015-12-31",
              "val": 0.0001,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 0.0001,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 0.0001,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 0.0001,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 0.0001,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 0.0001,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "end": "2016-12-31",
              "val": 0.0001,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
              "val": 0.0001,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "end": "2016-12-31",
              "val": 0.0001,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 0.0001,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 0.0001,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 0.0001,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 0.0001,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 0.0001,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 0.0001,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 0.0001,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 0.0001,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 0.0001,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 0.0001,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 0.0001,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 0.0001,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 0.0001,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 0.0001,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 0.0001,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 0.0001,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 0.0001,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 0.0001,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 0.0001,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 0.0001,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 0.0001,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2019-12-31",
              "val": 0.0001,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2019-12-31",
              "val": 0.0001,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2019-12-31",
              "val": 0.0001,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 0.0001,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-06-30",
              "val": 0.0001,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 0.0001,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 0.0001,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 0.0001,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2020-12-31",
              "val": 0.0001,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2020-12-31",
              "val": 0.0001,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2020-12-31",
              "val": 0.0001,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 0.0001,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 0.0001,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 0.0001,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 0.0001,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 0.0001,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 0.0001,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 0.0001,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 0.0001,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 0.0001,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 0.0001,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 0.0001,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 0.0001,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 0.0001,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 0.0001,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 0.0001,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 0.0001,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 0.0001,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 0.0001,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 0.0001,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 0.0001,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 0.0001,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 0.0001,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 0.0001,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 0.0001,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 0.0001,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 0.0001,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 0.0001,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 0.0001,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 0.0001,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2024-12-31",
              "val": 0.0001,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2024-12-31",
              "val": 0.0001,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2024-12-31",
              "val": 0.0001,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 0.0001,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 0.0001,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 0.0001,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 0.0001,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2025-12-31",
              "val": 0.0001,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 0.0001,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 0.0001,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 0.0001,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "CommonStockSharesAuthorized": {
        "label": "Common Stock, Shares Authorized",
        "description": "The maximum number of common shares permitted to be issued by an entity's charter and bylaws.",
        "units": {
          "shares": [
            {
              "end": "2009-12-31",
              "val": 200000000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "end": "2009-12-31",
              "val": 200000000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "end": "2009-12-31",
              "val": 200000000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2009Q4I"
            },
            {
              "end": "2010-06-30",
              "val": 200000000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2010Q2I"
            },
            {
              "end": "2010-09-30",
              "val": 200000000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2010Q3I"
            },
            {
              "end": "2010-12-31",
              "val": 200000000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "end": "2010-12-31",
              "val": 200000000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "end": "2010-12-31",
              "val": 200000000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2010-12-31",
              "val": 200000000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2010-12-31",
              "val": 200000000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-03-31",
              "val": 200000000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2011Q1I"
            },
            {
              "end": "2011-06-30",
              "val": 200000000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 200000000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2011-09-30",
              "val": 200000000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 200000000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 200000000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2011-12-31",
              "val": 200000000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "end": "2011-12-31",
              "val": 200000000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 200000000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 200000000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 200000000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 200000000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 200000000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "end": "2012-12-31",
              "val": 200000000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "end": "2012-12-31",
              "val": 200000000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "end": "2012-12-31",
              "val": 200000000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 200000000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 200000000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 200000000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 200000000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 200000000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "end": "2013-12-31",
              "val": 200000000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "end": "2013-12-31",
              "val": 200000000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "end": "2013-12-31",
              "val": 200000000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 200000000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 200000000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 200000000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 200000000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 200000000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2014-12-31",
              "val": 200000000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2014-12-31",
              "val": 200000000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "end": "2014-12-31",
              "val": 200000000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 200000000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 200000000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 200000000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 200000000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 200000000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2015-12-31",
              "val": 200000000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2015-12-31",
              "val": 200000000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "end": "2015-12-31",
              "val": 200000000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 200000000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 200000000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 200000000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 200000000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 200000000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "end": "2016-12-31",
              "val": 200000000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
              "val": 200000000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "end": "2016-12-31",
              "val": 200000000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 200000000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 200000000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 200000000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 200000000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 200000000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 200000000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 200000000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 200000000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 200000000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 200000000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 200000000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 200000000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 200000000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 200000000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 200000000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 200000000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 200000000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 200000000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 200000000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 200000000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 200000000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2019-12-31",
              "val": 200000000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2019-12-31",
              "val": 200000000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2019-12-31",
              "val": 200000000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 200000000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-06-30",
              "val": 200000000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 200000000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 200000000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 200000000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2020-12-31",
              "val": 200000000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2020-12-31",
              "val": 200000000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2020-12-31",
              "val": 200000000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 200000000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 200000000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 200000000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 200000000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 200000000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 200000000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 200000000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 200000000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 200000000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 200000000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 200000000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 200000000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 200000000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 200000000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 200000000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 200000000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 200000000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 200000000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 200000000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 200000000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 200000000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 200000000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 200000000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 200000000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 200000000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 200000000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 200000000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 200000000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 200000000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2024-12-31",
              "val": 200000000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2024-12-31",
              "val": 200000000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2024-12-31",
              "val": 200000000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 200000000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 200000000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 200000000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 200000000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2025-12-31",
              "val": 200000000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 200000000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 200000000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 200000000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "CommonStockSharesIssued": {
        "label": "Common Stock, Shares, Issued",
        "description": "Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.",
        "units": {
          "shares": [
            {
              "end": "2009-12-31",
              "val": 74568000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "end": "2009-12-31",
              "val": 74568000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "end": "2009-12-31",
              "val": 74568000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2009Q4I"
            },
            {
              "end": "2010-06-30",
              "val": 75759000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2010Q2I"
            },
            {
              "end": "2010-09-30",
              "val": 76255000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2010Q3I"
            },
            {
              "end": "2010-12-31",
              "val": 76390000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "end": "2010-12-31",
              "val": 74568000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "end": "2010-12-31",
              "val": 76390000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2010-12-31",
              "val": 76390000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2010-12-31",
              "val": 76390000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-03-31",
              "val": 77189000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2011Q1I"
            },
            {
              "end": "2011-06-30",
              "val": 78305000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 78531000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2011-09-30",
              "val": 78776000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 78776000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 78776000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2011-12-31",
              "val": 78776000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "end": "2011-12-31",
              "val": 78776000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 79798000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 80760000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 81784000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 80611000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 80611000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "end": "2012-12-31",
              "val": 80611000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "end": "2012-12-31",
              "val": 80611000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "end": "2012-12-31",
              "val": 80611000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 81725000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 79699000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 81114000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 80583000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 80583000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "end": "2013-12-31",
              "val": 80583000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "end": "2013-12-31",
              "val": 80583000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "end": "2013-12-31",
              "val": 80583000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 81632000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 80783000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 80516000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 80205000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 80205000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2014-12-31",
              "val": 80205000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2014-12-31",
              "val": 80205000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "end": "2014-12-31",
              "val": 80205000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 80734000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 80069000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 79564000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 79500000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 79500000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2015-12-31",
              "val": 79500000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2015-12-31",
              "val": 79500000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "end": "2015-12-31",
              "val": 79500000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 80175000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 0,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 79867000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 79553000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 79553000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "end": "2016-12-31",
              "val": 79553000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
              "val": 79553000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "end": "2016-12-31",
              "val": 79553000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 80324000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 80144000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 80176000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 80040000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 80040000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 80040000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 80040000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 80040000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 80144000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 80313000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 79983000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 79778000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 79778000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 79778000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 79778000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 79778000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 80000000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 79865000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 78809000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 78433000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 78433000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2019-12-31",
              "val": 78433000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2019-12-31",
              "val": 78433000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2019-12-31",
              "val": 78433000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 78759000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-06-30",
              "val": 78781000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 78849000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 78860000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 78860000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2020-12-31",
              "val": 78860000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2020-12-31",
              "val": 78860000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2020-12-31",
              "val": 78860000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 79136000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 78948000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 78852000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 78710000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 78710000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 78710000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 78710000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 78710000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 78805000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 78059000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 78111000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 77267000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 77267000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 77267000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 77267000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 77267000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 76516000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 76532000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 76588000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 75075000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 75075000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 75075000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 75075000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 75075000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 75281000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 74696000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 74757000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 73849000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 73849000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2024-12-31",
              "val": 73849000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2024-12-31",
              "val": 73849000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2024-12-31",
              "val": 73849000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 73057000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 72486000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 72040000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 71364000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2025-12-31",
              "val": 71364000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 71364000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 71617000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 71245000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "CommonStockSharesOutstanding": {
        "label": "Common Stock, Shares, Outstanding",
        "description": "Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.",
        "units": {
          "shares": [
            {
              "end": "2009-12-31",
              "val": 74568000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "end": "2009-12-31",
              "val": 74568000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "end": "2009-12-31",
              "val": 74568000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2009Q4I"
            },
            {
              "end": "2010-06-30",
              "val": 75759000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2010Q2I"
            },
            {
              "end": "2010-09-30",
              "val": 76255000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2010Q3I"
            },
            {
              "end": "2010-12-31",
              "val": 76390000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "end": "2010-12-31",
              "val": 74568000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "end": "2010-12-31",
              "val": 76390000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2010-12-31",
              "val": 76390000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2010-12-31",
              "val": 76390000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-03-31",
              "val": 77189000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2011Q1I"
            },
            {
              "end": "2011-06-30",
              "val": 78305000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 78531000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2011-09-30",
              "val": 78776000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 78776000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 78776000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2011-12-31",
              "val": 78776000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "end": "2011-12-31",
              "val": 78776000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 79798000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 80760000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 81784000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 80611000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 80611000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "end": "2012-12-31",
              "val": 80611000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "end": "2012-12-31",
              "val": 80611000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "end": "2012-12-31",
              "val": 80611000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 81725000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 79699000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 81114000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 80583000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 80583000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "end": "2013-12-31",
              "val": 80583000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "end": "2013-12-31",
              "val": 80583000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "end": "2013-12-31",
              "val": 80583000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 81632000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 80783000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 80516000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 80205000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 80205000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2014-12-31",
              "val": 80205000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2014-12-31",
              "val": 80205000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "end": "2014-12-31",
              "val": 80205000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 80734000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 80069000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 79564000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 79500000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 79500000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2015-12-31",
              "val": 79500000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2015-12-31",
              "val": 79500000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "end": "2015-12-31",
              "val": 79500000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 80175000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 0,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 79867000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 79553000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 79553000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "end": "2016-12-31",
              "val": 79553000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
              "val": 79553000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "end": "2016-12-31",
              "val": 79553000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 80324000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 80144000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 80176000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 80040000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 80040000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 80040000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 80040000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 80040000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 80144000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 80313000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 79983000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 79778000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 79778000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 79778000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 79778000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 79778000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 80000000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 79865000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 78809000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 78433000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 78433000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2019-12-31",
              "val": 78433000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2019-12-31",
              "val": 78433000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2019-12-31",
              "val": 78433000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 78759000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-06-30",
              "val": 78781000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 78849000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 78860000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 78860000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2020-12-31",
              "val": 78860000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2020-12-31",
              "val": 78860000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2020-12-31",
              "val": 78860000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 79136000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 78948000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 78852000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 78710000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 78710000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 78710000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 78710000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 78710000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 78805000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 78059000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 78111000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 77267000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 77267000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 77267000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 77267000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 77267000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 76516000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 76532000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 76588000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 75075000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 75075000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 75075000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 75075000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 75075000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 75281000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 74696000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 74757000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 73849000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 73849000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2024-12-31",
              "val": 73849000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2024-12-31",
              "val": 73849000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2024-12-31",
              "val": 73849000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 73057000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 72486000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 72040000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 71364000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2025-12-31",
              "val": 71364000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 71364000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 71617000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 71245000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "CommonStockValue": {
        "label": "Common Stock, Value, Issued",
        "description": "Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity.",
        "units": {
          "USD": [
            {
              "end": "2009-12-31",
              "val": 7000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "end": "2009-12-31",
              "val": 7000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "end": "2009-12-31",
              "val": 7000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2009Q4I"
            },
            {
              "end": "2010-06-30",
              "val": 8000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2010Q2I"
            },
            {
              "end": "2010-09-30",
              "val": 8000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2010Q3I"
            },
            {
              "end": "2010-12-31",
              "val": 8000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "end": "2010-12-31",
              "val": 8000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "end": "2010-12-31",
              "val": 8000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2010-12-31",
              "val": 8000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2010-12-31",
              "val": 8000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-03-31",
              "val": 8000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2011Q1I"
            },
            {
              "end": "2011-06-30",
              "val": 8000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 8000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 8000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 8000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2011-12-31",
              "val": 8000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "end": "2011-12-31",
              "val": 8000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "end": "2011-12-31",
              "val": 8000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 8000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 8000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 8000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 8000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 8000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "end": "2012-12-31",
              "val": 8000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "end": "2012-12-31",
              "val": 8000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "end": "2012-12-31",
              "val": 8000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 8000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 8000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 8000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 8000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 8000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "end": "2013-12-31",
              "val": 8000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "end": "2013-12-31",
              "val": 8000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "end": "2013-12-31",
              "val": 8000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 8000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 8000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 8000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 8000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 8000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2014-12-31",
              "val": 8000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2014-12-31",
              "val": 8000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "end": "2014-12-31",
              "val": 8000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 8000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 8000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 8000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 8000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 8000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2015-12-31",
              "val": 8000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2015-12-31",
              "val": 8000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "end": "2015-12-31",
              "val": 8000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 8000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 8000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 8000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 8000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 8000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "end": "2016-12-31",
              "val": 8000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
              "val": 8000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "end": "2016-12-31",
              "val": 8000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 8000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 8000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 8000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 8000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 8000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 8000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 8000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 8000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 8000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 8000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 8000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 8000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 8000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 8000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 8000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 8000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 8000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 8000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 8000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 8000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 8000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2019-12-31",
              "val": 8000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2019-12-31",
              "val": 8000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2019-12-31",
              "val": 8000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 8000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-06-30",
              "val": 8000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 8000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 8000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 8000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2020-12-31",
              "val": 8000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2020-12-31",
              "val": 8000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2020-12-31",
              "val": 8000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 8000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 8000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 8000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 8000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 8000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 8000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 8000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 8000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 8000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 8000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 8000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 8000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 8000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 8000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 8000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 8000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 8000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 8000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 8000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 7000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 7000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 7000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 7000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 7000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 7000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 7000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 7000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 7000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 7000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2024-12-31",
              "val": 7000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2024-12-31",
              "val": 7000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2024-12-31",
              "val": 7000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 7000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 7000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 7000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 7000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2025-12-31",
              "val": 7000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 7000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 7000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 7000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "ComprehensiveIncomeNetOfTax": {
        "label": "Comprehensive Income (Loss), Net of Tax, Attributable to Parent",
        "description": "Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.",
        "units": {
          "USD": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": 79599000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": -31083000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": -31083000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 46829000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2010-04-01",
              "end": "2010-06-30",
              "val": 32245000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2010Q2"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 64210000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2010-07-01",
              "end": "2010-09-30",
              "val": 17382000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2010Q3"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 73932000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 73932000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 73932000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 16331000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2011Q1"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 27612000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 27612000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2011-04-01",
              "end": "2011-06-30",
              "val": 11281000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-04-01",
              "end": "2011-06-30",
              "val": 11281000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2011Q2"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 46479000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 46479000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": 19226000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": 18866000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2011Q3"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 66628000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 66628000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 66628000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 21131000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 21131000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 49090000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 49090000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": 27959000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": 27959000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2012Q2"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 49067000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 49067000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": -23000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": -23000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2012Q3"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 58848000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 58848000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 58848000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": -42035000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": -42035000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": -12910000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": -12910000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-04-01",
              "end": "2013-06-30",
              "val": 29126000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-04-01",
              "end": "2013-06-30",
              "val": 29126000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2013Q2"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 22003000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 22003000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 34911000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 34911000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2013Q3"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 64386000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 64386000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 64386000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 32592000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 32592000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 68258000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 68258000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2014-04-01",
              "end": "2014-06-30",
              "val": 35666000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-04-01",
              "end": "2014-06-30",
              "val": 35666000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2014Q2"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 106055000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 106055000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": 37799000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": 37799000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2014Q3"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 145398000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 145398000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 145398000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 36211000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 36211000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 67480000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 67480000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2015-04-01",
              "end": "2015-06-30",
              "val": 31269000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-04-01",
              "end": "2015-06-30",
              "val": 31269000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2015Q2"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 95308000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 95308000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2015-07-01",
              "end": "2015-09-30",
              "val": 27828000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-07-01",
              "end": "2015-09-30",
              "val": 27828000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2015Q3"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 143180000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 143180000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 143180000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 41548000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 41548000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 92102000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 92102000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-04-01",
              "end": "2016-06-30",
              "val": 50554000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-04-01",
              "end": "2016-06-30",
              "val": 50554000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2016Q2"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 142956000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 142956000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": 50854000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": 50854000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2016Q3"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 189724000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 189724000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 189724000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 68976000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 68976000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 139381000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 139381000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-04-01",
              "end": "2017-06-30",
              "val": 70405000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-04-01",
              "end": "2017-06-30",
              "val": 70405000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2017Q2"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 222880000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 222880000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": 83499000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": 83499000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2017Q3"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 232927000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 232927000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 232927000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 96779000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 96779000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 201631000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 202311000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": 106678000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": 105532000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2018Q2"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 301544000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 301544000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 99233000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 99233000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2018Q3"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 396890000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 396890000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 396890000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 72341000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 72341000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 219888000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 219888000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 147547000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 147547000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2019Q2"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 322361000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 322361000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 102473000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 102473000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2019Q3"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 444862000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 444862000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 444862000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 1518626000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 1518626000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 1487318000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 1487318000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": -31308000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": -31308000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2020Q2"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 1642499000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 1642499000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 155181000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 155181000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2020Q3"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 1820077000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 1820077000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 1820077000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 185905000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 185905000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 386205000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 386205000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 200300000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 200300000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2021Q2"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 555157000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 555157000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 168952000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 168952000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2021Q3"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 732845000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 732845000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 732845000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 124259000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 124259000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 223002000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 223002000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": 98743000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": 98743000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2022Q2"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 274727000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 274727000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": 51725000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": 51725000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2022Q3"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 346963000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 346963000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 346963000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 99917000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 99917000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 221239000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 221239000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 121322000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 121322000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2023Q2"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 333370000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 333370000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 112131000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 112131000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2023Q3"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 476505000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 476505000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 476505000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 102299000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 102299000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 205465000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 205465000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 103166000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 103166000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2024Q2"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 332300000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 332300000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 126835000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 126835000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2024Q3"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 406172000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 406172000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 105429000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 105429000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 273047000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 273047000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 167618000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 167618000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q2"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 333985000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-07-01",
              "end": "2025-09-30",
              "val": 60938000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 479761000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": 107476000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": 212263000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2026-04-01",
              "end": "2026-06-30",
              "val": 104787000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2"
            }
          ]
        }
      },
      "ContractualObligation": {
        "label": "Contractual Obligation",
        "description": "Amount of contractual obligation, including but not limited to, long-term debt, capital lease obligations, operating lease obligations, purchase obligations, and other commitments.",
        "units": {
          "USD": [
            {
              "end": "2019-10-03",
              "val": 36000000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2019-10-03",
              "val": 36000000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2019-10-03",
              "val": 36000000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2019Q3I"
            }
          ]
        }
      },
      "ContractWithCustomerLiabilityRevenueRecognized": {
        "label": "Contract with Customer, Liability, Revenue Recognized",
        "description": "Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.",
        "units": {
          "USD": [
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 119000000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017"
            },
            {
              "end": "2017-12-31",
              "val": 52600000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2017Q4I"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 180600000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 180600000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018"
            },
            {
              "end": "2018-12-31",
              "val": 68600000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2018Q4I"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 207000000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 70100000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2019Q3"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 262700000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 262700000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 95500000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 167900000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": 72400000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2020Q2"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 263300000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 263300000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 99600000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 99600000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2020Q3"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 341900000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 341900000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 125800000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 125800000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 260200000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 260200000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 134400000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 134400000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2021Q2"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 349700000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 382400000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 112600000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 122200000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2021Q3"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 481100000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 481100000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 184900000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 184900000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 363300000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 363300000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": 178400000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": 178400000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2022Q2"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 519800000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 519800000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": 156500000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": 156500000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2022Q3"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 635300000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 635300000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 205700000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 205700000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 404700000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 404700000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 199000000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 199000000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2023Q2"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 583500000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 583500000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 178800000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 178800000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2023Q3"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 732400000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 732400000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 236800000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 236800000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 459200000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 459200000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 222400000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 222400000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2024Q2"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 658200000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 658200000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 199000000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 199000000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2024Q3"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 819000000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 819000000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 246000000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 246000000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 475400000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 475400000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 229400000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 229400000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q2"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 675300000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-07-01",
              "end": "2025-09-30",
              "val": 200000000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 840500000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": 246400000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": 480700000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2026-04-01",
              "end": "2026-06-30",
              "val": 234300000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2"
            }
          ]
        }
      },
      "ContributionOfProperty": {
        "label": "Contribution of Property",
        "description": "Value of property contributed in noncash investing and financing activities.",
        "units": {
          "USD": [
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 0,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 0,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 0,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 3936000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 3936000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 3936000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 0,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019"
            }
          ]
        }
      },
      "CostOfGoodsSold": {
        "label": "Cost of Goods Sold (Deprecated 2018-01-31)",
        "description": "Total costs related to goods produced and sold during the reporting period.",
        "units": {
          "USD": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": 69536000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2009-01-01",
              "end": "2009-06-30",
              "val": 31788000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2009-04-01",
              "end": "2009-06-30",
              "val": 16397000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2009Q2"
            },
            {
              "start": "2009-01-01",
              "end": "2009-09-30",
              "val": 50278000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2009-07-01",
              "end": "2009-09-30",
              "val": 18491000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2009Q3"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 71530000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-03-31",
              "val": 18607000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2010Q1"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 36888000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-04-01",
              "end": "2010-06-30",
              "val": 18583000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2010Q2"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 55978000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-07-01",
              "end": "2010-09-30",
              "val": 19090000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2010Q3"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 74418000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 20993000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2011Q1"
            }
          ]
        }
      },
      "CostOfRevenue": {
        "label": "Cost of Revenue",
        "description": "The aggregate cost of goods produced and sold and services rendered during the reporting period.",
        "units": {
          "USD": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": 78850000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2009-01-01",
              "end": "2009-06-30",
              "val": 35763000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2009-04-01",
              "end": "2009-06-30",
              "val": 18338000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2009Q2"
            },
            {
              "start": "2009-01-01",
              "end": "2009-09-30",
              "val": 56031000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2009-07-01",
              "end": "2009-09-30",
              "val": 20268000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2009Q3"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 78841000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 78841000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-03-31",
              "val": 20380000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2010Q1"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 41558000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 41558000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2010-04-01",
              "end": "2010-06-30",
              "val": 21178000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-04-01",
              "end": "2010-06-30",
              "val": 21178000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2010Q2"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 62572000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 62572000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2010-07-01",
              "end": "2010-09-30",
              "val": 21014000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-07-01",
              "end": "2010-09-30",
              "val": 21014000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2010Q3"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 83709000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 83709000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 83709000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 22630000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 22630000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2011Q1"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 51579000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 51579000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2011-04-01",
              "end": "2011-06-30",
              "val": 28949000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-04-01",
              "end": "2011-06-30",
              "val": 28949000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2011Q2"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 85103000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 85103000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": 33524000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": 33524000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2011Q3"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 118458000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 118458000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 118458000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 34319000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 34319000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 71145000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 71145000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": 36826000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": 36826000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2012Q2"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 107291000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 107291000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 36146000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 36146000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2012Q3"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 143653000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 143653000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 143653000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 40731000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 40731000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 80868000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 80868000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-04-01",
              "end": "2013-06-30",
              "val": 40137000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-04-01",
              "end": "2013-06-30",
              "val": 40137000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2013Q2"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 120284000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 120284000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 39416000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 39416000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2013Q3"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 162100000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 162100000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 162100000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 43395000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 43395000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 90450000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 90450000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2014-04-01",
              "end": "2014-06-30",
              "val": 47055000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-04-01",
              "end": "2014-06-30",
              "val": 47055000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2014Q2"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 135272000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 135272000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": 44822000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": 44822000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2014Q3"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 183210000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 183210000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 183210000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 46996000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 46996000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 97850000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 97850000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2015-04-01",
              "end": "2015-06-30",
              "val": 50854000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-04-01",
              "end": "2015-06-30",
              "val": 50854000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2015Q2"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 147910000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 147910000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2015-07-01",
              "end": "2015-09-30",
              "val": 50060000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-07-01",
              "end": "2015-09-30",
              "val": 50060000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2015Q3"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 205376000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 205376000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 205376000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 58093000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 58093000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 122239000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 122239000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-04-01",
              "end": "2016-06-30",
              "val": 64146000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-04-01",
              "end": "2016-06-30",
              "val": 64146000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2016Q2"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 191626000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 191626000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": 69387000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": 69387000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2016Q3"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 264580000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 264580000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 264580000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 74716000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 74716000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 160281000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 160281000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-04-01",
              "end": "2017-06-30",
              "val": 85565000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-04-01",
              "end": "2017-06-30",
              "val": 85565000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2017Q2"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 253060000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 253060000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": 92779000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": 92779000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2017Q3"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 356466000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 356466000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 356466000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 109516000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 109516000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 234193000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 234193000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": 124677000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": 124677000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2018Q2"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 367701000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 367701000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 133508000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 133508000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2018Q3"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 518625000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 518625000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 518625000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 146875000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 146875000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 315283000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 315283000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 168408000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 168408000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2019Q2"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 485070000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 485070000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 169787000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 169787000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2019Q3"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 662899000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 662899000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 662899000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 156607000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 156607000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 284593000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 284593000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": 127986000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": 127986000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2020Q2"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 484649000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 484649000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 200056000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 200056000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2020Q3"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 708706000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 708706000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 708706000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 217673000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 217673000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 469943000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 469943000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 252270000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 252270000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2021Q2"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 730693000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 730693000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 260750000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 260750000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2021Q3"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 1017229000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 1017229000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 1017229000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 263873000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 263873000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 545867000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 545867000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": 281994000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": 281994000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2022Q2"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 817046000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 817046000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": 271179000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": 271179000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2022Q3"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 1100860000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 1100860000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 1100860000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 282493000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 282493000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 571057000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 571057000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 288564000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 288564000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2023Q2"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 868195000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 868195000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 297138000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 297138000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2023Q3"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 1155397000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 1155397000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 1155397000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 299615000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 299615000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 605477000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 605477000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 305862000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 305862000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2024Q2"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 901575000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 901575000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 296098000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 296098000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2024Q3"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 1199853000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 1199853000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 299154000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 299154000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 603486000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 603486000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 304332000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 304332000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q2"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 959977000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-07-01",
              "end": "2025-09-30",
              "val": 356491000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 1323951000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": 303500000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": 602262000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2026-04-01",
              "end": "2026-06-30",
              "val": 298762000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2"
            }
          ]
        }
      },
      "CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption": {
        "label": "Cumulative Effect of New Accounting Principle in Period of Adoption (Deprecated 2020-01-31)",
        "description": "Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption.",
        "units": {
          "USD": [
            {
              "end": "2016-01-01",
              "val": 3918000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2017-01-01",
              "val": -1300000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2017-01-01",
              "val": -1300000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": -1300000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 384000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            }
          ]
        }
      },
      "CurrentFederalTaxExpenseBenefit": {
        "label": "Current Federal Tax Expense (Benefit)",
        "description": "Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.",
        "units": {
          "USD": [
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": -1196000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 0,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 65000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 65000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 65000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 0,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 0,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 0,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 26000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 26000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 26000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 1569000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 1569000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 1569000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 28596000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 28596000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 28596000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 40235000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 40235000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 40235000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 91214000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 91214000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 91214000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 35788000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 35788000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 35788000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 76528000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 76528000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 76528000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 55291000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 55291000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 55291000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 157383000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 157383000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 157383000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 188050000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 188050000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 188050000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 134332000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 134332000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 134332000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 95027000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 95027000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 52962000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            }
          ]
        }
      },
      "CurrentForeignTaxExpenseBenefit": {
        "label": "Current Foreign Tax Expense (Benefit)",
        "description": "Amount of current foreign income tax expense (benefit) pertaining to income (loss) from continuing operations.",
        "units": {
          "USD": [
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 1280000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 1197000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 1197000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 1263000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 1263000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 1263000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 1173000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 1173000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 1173000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 3113000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 3113000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 3113000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 1596000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 1596000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 1596000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 4305000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 4305000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 4305000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 8964000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 8964000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 8964000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 15285000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 15285000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 15285000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 22753000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 22753000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 22753000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 28364000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 28364000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 28364000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 29399000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 29399000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 29399000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 42681000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 42681000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 42681000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 56537000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 56537000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 56537000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 51306000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 51306000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 51306000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 56653000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 56653000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 74689000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            }
          ]
        }
      },
      "CurrentStateAndLocalTaxExpenseBenefit": {
        "label": "Current State and Local Tax Expense (Benefit)",
        "description": "Amount of current state and local tax expense (benefit) pertaining to income (loss) from continuing operations.",
        "units": {
          "USD": [
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": -96000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 386000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 386000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 224000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 224000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 224000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 438000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 438000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 438000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 1235000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 1235000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 1235000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 2162000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 2162000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 2162000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 3271000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 3271000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 3271000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 2603000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 2603000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 2603000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 2580000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 2580000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 2580000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 9568000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 9568000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 9568000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 9169000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 9169000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 9169000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 8862000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 8862000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 8862000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 28365000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 28365000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 28365000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 34621000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 34621000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 34621000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 28535000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 28535000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 28535000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 13702000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 13702000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 13977000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            }
          ]
        }
      },
      "CustomerAdvancesAndDeposits": {
        "label": "Customer Advances and Deposits",
        "description": "Refundable consideration, usually cash, held by the entity pending satisfactory completion of the entity's obligations or pending the closing of a contract.",
        "units": {
          "USD": [
            {
              "end": "2011-12-31",
              "val": 206000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-09-30",
              "val": 2792000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            }
          ]
        }
      },
      "CustomerDepositsCurrent": {
        "label": "Customer Deposits, Current",
        "description": "The current portion of money or property received from customers which is either to be returned upon satisfactory contract completion or applied to customer receivables in accordance with the terms of the contract or the understandings.",
        "units": {
          "USD": [
            {
              "end": "2012-12-31",
              "val": 237000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-06-30",
              "val": 2054000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            }
          ]
        }
      },
      "DebtConversionConvertedInstrumentAmount1": {
        "label": "Debt Conversion, Converted Instrument, Amount",
        "description": "\"The value of the financial instrument(s) that the original debt is being converted into in a noncash (or part noncash) transaction. \"\"Part noncash\"\" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.\"",
        "units": {
          "USD": [
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 0,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 0,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 4862000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 4862000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            }
          ]
        }
      },
      "DebtInstrumentBasisSpreadOnVariableRate": {
        "label": "Debt Instrument, Basis Spread on Variable Rate (Deprecated 2013-01-31)",
        "description": "The percentage points added to the reference rate to compute the variable rate on the debt instrument.",
        "units": {
          "pure": [
            {
              "end": "2013-03-22",
              "val": 0.0175,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-03-22",
              "val": 0.0175,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            }
          ]
        }
      },
      "DebtInstrumentBasisSpreadOnVariableRate1": {
        "label": "Debt Instrument, Basis Spread on Variable Rate",
        "description": "Percentage points added to the reference rate to compute the variable rate on the debt instrument.",
        "units": {
          "pure": [
            {
              "start": "2013-03-21",
              "end": "2013-03-22",
              "val": 0.0175,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-03-21",
              "end": "2013-03-22",
              "val": 0.0175,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "start": "2013-03-21",
              "end": "2013-03-22",
              "val": 0.0175,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-03-21",
              "end": "2013-03-22",
              "val": 0.0175,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2013-03-21",
              "end": "2013-03-22",
              "val": 0.0175,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "start": "2013-03-21",
              "end": "2013-03-22",
              "val": 0.0175,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2013-03-21",
              "end": "2013-03-22",
              "val": 0.0175,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2013-03-21",
              "end": "2013-03-22",
              "val": 0.0175,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "start": "2013-03-21",
              "end": "2013-03-22",
              "val": 0.0175,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2013-03-21",
              "end": "2013-03-22",
              "val": 0.0175,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2013-03-21",
              "end": "2013-03-22",
              "val": 0.0175,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "start": "2013-03-21",
              "end": "2013-03-22",
              "val": 0.0175,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2013-03-21",
              "end": "2013-03-22",
              "val": 0.0175,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2013Q1I"
            }
          ]
        }
      },
      "DebtInstrumentInterestRateStatedPercentage": {
        "label": "Debt Instrument, Interest Rate, Stated Percentage",
        "description": "Contractual interest rate for funds borrowed, under the debt agreement.",
        "units": {
          "pure": [
            {
              "end": "2017-12-31",
              "val": 0.0175,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2017Q4I"
            }
          ]
        }
      },
      "DebtInstrumentInterestRateStatedPercentageRateRangeMaximum": {
        "label": "Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximum (Deprecated 2016-01-31)",
        "description": "Maximum contractual interest rate for funds borrowed, under the debt agreement.",
        "units": {
          "pure": [
            {
              "start": "2010-12-09",
              "end": "2010-12-10",
              "val": 0.02,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 0.02,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 0.02,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 0.02,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 0.02,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 0.02,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 0.0175,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 0.0175,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 0.0175,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 0.0175,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2016"
            }
          ]
        }
      },
      "DebtInstrumentInterestRateStatedPercentageRateRangeMinimum": {
        "label": "Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum (Deprecated 2016-01-31)",
        "description": "Minimum contractual interest rate for funds borrowed, under the debt agreement.",
        "units": {
          "pure": [
            {
              "start": "2010-12-09",
              "end": "2010-12-10",
              "val": 0.015,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 0.015,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 0.015,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 0.015,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 0.015,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 0.015,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 0.0175,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 0.0175,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 0.0175,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 0.0175,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2016"
            }
          ]
        }
      },
      "DeferredFederalIncomeTaxExpenseBenefit": {
        "label": "Deferred Federal Income Tax Expense (Benefit)",
        "description": "Amount of deferred federal income tax expense (benefit) pertaining to income (loss) from continuing operations.",
        "units": {
          "USD": [
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": -1437000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 23193000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 23193000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 21026000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 21026000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 21026000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 22382000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 22382000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 22382000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 24262000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 24262000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 24262000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 37570000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 37570000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 37570000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 6679000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 6679000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 6679000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 24794000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 24794000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 24794000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 15724000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 15724000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 15724000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": -5989000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": -5989000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": -5989000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 1235000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 1235000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 1235000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": -11749000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": -11749000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": -11749000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": -25598000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": -25598000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": -25598000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": -55579000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": -55579000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": -55579000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": -16805000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": -16805000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": -16805000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 1578000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 1578000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 14385000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            }
          ]
        }
      },
      "DeferredForeignIncomeTaxExpenseBenefit": {
        "label": "Deferred Foreign Income Tax Expense (Benefit)",
        "description": "Amount of deferred foreign income tax expense (benefit) pertaining to income (loss) from continuing operations.",
        "units": {
          "USD": [
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": -60000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 60000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 60000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": -747000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": -747000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": -747000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 126000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 126000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 126000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": -950000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": -950000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": -950000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 669000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 669000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 669000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": -67000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": -67000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": -67000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": -28032000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": -28032000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": -28032000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 2682000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 2682000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 2682000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": -1123000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": -1123000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": -1123000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": -3158000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": -3158000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": -3158000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": -1476621000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": -1476621000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": -1476621000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 43432000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 43432000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 43432000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 26120000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 26120000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 26120000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 1940000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 1940000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 1940000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 17253000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 17253000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 5157000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            }
          ]
        }
      },
      "DeferredIncomeTaxAssetsNet": {
        "label": "Deferred Income Tax Assets, Net",
        "description": "Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, with jurisdictional netting.",
        "units": {
          "USD": [
            {
              "end": "2019-12-31",
              "val": 64007000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2019-12-31",
              "val": 64007000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2019-12-31",
              "val": 64007000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2019-12-31",
              "val": 64007000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 1551141000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-06-30",
              "val": 1568293000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 1566227000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 1552831000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 1552831000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2020-12-31",
              "val": 1552831000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2020-12-31",
              "val": 1552831000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2020-12-31",
              "val": 1552831000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 1521922000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 1512285000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 1502250000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 1533767000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 1533767000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 1533767000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 1533767000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 1533767000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 1515620000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 1518648000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 1524584000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 1571746000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 1571746000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 1571746000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 1571746000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 1571746000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 1589640000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 1605926000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 1591791000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 1590045000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 1590045000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 1590045000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 1590045000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 1590045000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 1570626000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 1577856000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 1569950000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 1557372000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 1557372000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2024-12-31",
              "val": 1557372000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2024-12-31",
              "val": 1557372000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2024-12-31",
              "val": 1557372000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 1523479000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 1548229000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 1555580000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 1513542000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2025-12-31",
              "val": 1513542000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 1513542000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 1471425000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 1479864000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "DeferredIncomeTaxExpenseBenefit": {
        "label": "Deferred Income Tax Expense (Benefit)",
        "description": "Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.",
        "units": {
          "USD": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": -64608000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2009-01-01",
              "end": "2009-06-30",
              "val": 563000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2009-01-01",
              "end": "2009-09-30",
              "val": 740000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": -2612000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": -2612000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-03-31",
              "val": 4975000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2010Q1"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 17364000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 17364000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 17631000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 17631000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 17307000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 17307000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 17307000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 3983000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 3983000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2011Q1"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 7905000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 7905000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 13506000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 13506000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 5842000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 5842000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 5842000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 4726000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 4726000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 9228000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 9228000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 13165000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 13165000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 17783000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 17783000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 17783000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 931000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 931000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 6272000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 6272000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 14501000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 14501000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 21204000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 21204000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": -5899000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 12769000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 12769000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 17496000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 17496000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 20870000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 20870000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 25481000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 4088000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 4088000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 291000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": -4488000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 297000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": -5910000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 4017000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": -4646000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": -11424000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": -11424000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": -11424000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": -6113000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": -6113000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": -8608000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": -8608000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": -17476000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": -17476000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": -16401000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": -16401000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": -16401000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 7789000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 7789000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 6145000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 6145000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": -5481000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": -5481000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 17572000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 17572000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 17572000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 4069000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 4069000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 3667000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 3667000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 2047000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 2047000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": -15680000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": -15680000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": -15680000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 7586000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 7586000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 5606000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 5606000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 1470000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 1470000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 307000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 307000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 307000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": -1487154000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": -1487154000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": -1504251000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": -1504251000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": -1502459000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": -1502459000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": -1491577000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": -1491577000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": -1491577000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 28979000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 28979000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 39961000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 39961000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 48104000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 48104000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 15455000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 15455000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 15455000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 17464000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 17464000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 14747000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 14747000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 6765000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 6765000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": -39495000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": -39495000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": -39495000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": -18417000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": -18417000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": -36688000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": -36688000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": -22749000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": -22749000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": -18642000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": -18642000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": -18642000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 18047000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 18047000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 9506000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 9506000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 17465000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 17465000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 25756000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 25756000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 33683000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 33683000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": -759000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": -759000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": -9409000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 33085000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": 40644000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": 31425000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            }
          ]
        }
      },
      "DeferredIncomeTaxLiabilities": {
        "label": "Deferred Tax Liabilities, Gross",
        "description": "Amount of deferred tax liability attributable to taxable temporary differences.",
        "units": {
          "USD": [
            {
              "end": "2011-12-31",
              "val": 13336000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 10248000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 10248000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-12-31",
              "val": 5877000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 5877000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-12-31",
              "val": 7587000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 7587000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 9156000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 9156000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 13003000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 13003000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 11578000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 11578000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 9834000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 9834000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-12-31",
              "val": 25158000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 25158000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-06-30",
              "val": 35400000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 36800000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 52139000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 35700000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2020-12-31",
              "val": 35700000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2020-12-31",
              "val": 35700000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2020-12-31",
              "val": 52139000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 32900000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 34000000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 32300000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 47835000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 48248000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-12-31",
              "val": 40853000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 40853000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-12-31",
              "val": 36481000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 36481000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-12-31",
              "val": 49864000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 49864000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 42393000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025Q4I"
            }
          ]
        }
      },
      "DeferredRevenueCurrent": {
        "label": "Deferred Revenue, Current",
        "description": "Amount of deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable, classified as current.",
        "units": {
          "USD": [
            {
              "end": "2009-12-31",
              "val": 32299000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "end": "2009-12-31",
              "val": 32299000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "end": "2009-12-31",
              "val": 32299000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2009Q4I"
            },
            {
              "end": "2010-06-30",
              "val": 27036000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2010Q2I"
            },
            {
              "end": "2010-09-30",
              "val": 30136000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2010Q3I"
            },
            {
              "end": "2010-12-31",
              "val": 33848000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "end": "2010-12-31",
              "val": 33848000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "end": "2010-12-31",
              "val": 33848000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2010-12-31",
              "val": 33848000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2010-12-31",
              "val": 33848000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-03-31",
              "val": 37199000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2011Q1I"
            },
            {
              "end": "2011-06-30",
              "val": 43024000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 47768000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 52252000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 52252000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2011-12-31",
              "val": 52252000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "end": "2011-12-31",
              "val": 52252000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "end": "2011-12-31",
              "val": 52252000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 54650000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 59403000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 65324000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 61975000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 61975000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "end": "2012-12-31",
              "val": 61975000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "end": "2012-12-31",
              "val": 61975000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "end": "2012-12-31",
              "val": 61975000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 59472000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 63322000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 70397000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 77275000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 77275000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "end": "2013-12-31",
              "val": 77275000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "end": "2013-12-31",
              "val": 77275000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "end": "2013-12-31",
              "val": 77275000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 81000000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 85125000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 87443000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 90684000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 90684000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2014-12-31",
              "val": 90684000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2014-12-31",
              "val": 90684000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "end": "2014-12-31",
              "val": 90684000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 93868000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 101420000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 115998000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 129553000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 129553000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2015-12-31",
              "val": 129553000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2015-12-31",
              "val": 129553000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "end": "2015-12-31",
              "val": 129553000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 145769000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 160557000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 177409000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 191407000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 191407000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "end": "2016-12-31",
              "val": 191407000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
              "val": 191407000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "end": "2016-12-31",
              "val": 191407000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 202895000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 220005000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 241576000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 266842000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 267713000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 267713000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 267713000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 267713000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 296011000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 321148000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 356109000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 393138000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 393138000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 393138000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 393138000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 393138000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 433518000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 481462000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 520712000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 563762000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 563762000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2019-12-31",
              "val": 563762000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2019-12-31",
              "val": 563762000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2019-12-31",
              "val": 563762000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 578537000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-06-30",
              "val": 601831000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 684139000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 777887000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 777887000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2020-12-31",
              "val": 777887000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2020-12-31",
              "val": 777887000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2020-12-31",
              "val": 777887000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 862872000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 975930000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 1070113000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 1152870000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 1152870000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 1152870000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 1152870000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 1152870000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 1212067000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 1242348000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 1286867000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 1343643000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 1343643000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 1343643000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 1343643000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 1343643000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 1376789000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 1396747000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 1408831000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 1427706000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 1427706000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 1427706000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 1427706000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 1427706000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 1409202000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 1378867000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 1380022000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 1331146000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 1331146000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2024-12-31",
              "val": 1331146000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2024-12-31",
              "val": 1331146000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2024-12-31",
              "val": 1331146000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 1319393000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 1317990000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 1294623000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 1261816000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2025-12-31",
              "val": 1261816000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 1261816000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 1235254000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 1187188000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "DeferredRevenueNoncurrent": {
        "label": "Deferred Revenue, Noncurrent",
        "description": "Amount of deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable, classified as noncurrent.",
        "units": {
          "USD": [
            {
              "end": "2017-12-31",
              "val": 4588000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 4588000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 4588000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 4588000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 6171000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 7625000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 11739000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 17051000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 17051000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 17051000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 17051000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 17051000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 19166000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 23902000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 27551000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 35503000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 35503000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2019-12-31",
              "val": 35503000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2019-12-31",
              "val": 35503000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2019-12-31",
              "val": 35503000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 36628000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-06-30",
              "val": 36142000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 46986000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 62551000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 62551000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2020-12-31",
              "val": 62551000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2020-12-31",
              "val": 62551000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2020-12-31",
              "val": 62551000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 74226000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 91379000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 108387000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 136684000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 136684000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 136684000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 136684000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 136684000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 146998000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 155510000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 152070000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 160662000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 160662000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 160662000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 160662000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 160662000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 157341000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 148277000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 146271000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 138000000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 138000000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 138000000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 138000000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 138000000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 115400000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 117582000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 108676000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 102164000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 102164000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2024-12-31",
              "val": 102164000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2024-12-31",
              "val": 102164000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2024-12-31",
              "val": 102164000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 93317000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 88454000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 84424000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 85543000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2025-12-31",
              "val": 85543000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 85543000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 77863000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 90458000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "DeferredRevenueRevenueRecognized": {
        "label": "Deferred Revenue, Revenue Recognized (Deprecated 2016-01-31)",
        "description": "Amount of previously reported deferred or unearned revenue that was recognized as revenue during the period. Deferred revenue is a liability related to a revenue producing activity for which revenue has not yet been recognized. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP.",
        "units": {
          "USD": [
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 14300000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-04-01",
              "end": "2010-06-30",
              "val": 14300000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2010Q2"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 14300000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 14300000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 14300000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 14300000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 14300000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-04-01",
              "end": "2011-06-30",
              "val": 14300000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 28000000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011"
            }
          ]
        }
      },
      "DeferredStateAndLocalIncomeTaxExpenseBenefit": {
        "label": "Deferred State and Local Income Tax Expense (Benefit)",
        "description": "Amount of deferred state and local tax expense (benefit) pertaining to income (loss) from continuing operations.",
        "units": {
          "USD": [
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": -1115000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 2914000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 2914000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 1394000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 1394000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 1394000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 1486000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 1486000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 1486000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 1158000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 1158000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 1158000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 971000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 971000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 971000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": -703000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": -703000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": -703000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 2636000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 2636000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 2636000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 2677000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 2677000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 2677000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": -3274000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": -3274000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": -3274000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 209000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 209000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 209000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": -2121000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": -2121000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": -2121000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": -5860000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": -5860000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": -5860000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": -12265000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": -12265000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": -12265000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": -3157000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": -3157000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": -3157000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 3384000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 3384000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 13766000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            }
          ]
        }
      },
      "DeferredTaxAssetsDeferredIncome": {
        "label": "Deferred Tax Assets, Deferred Income",
        "description": "Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from deferred income.",
        "units": {
          "USD": [
            {
              "end": "2014-12-31",
              "val": 15685000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 24432000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 24432000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 13975000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 13975000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 10811000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 10811000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 14285000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 14285000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-12-31",
              "val": 20909000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 20909000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-12-31",
              "val": 32562000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 32562000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-12-31",
              "val": 83514000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 83514000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-12-31",
              "val": 117039000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 117039000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-12-31",
              "val": 142082000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 142082000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-12-31",
              "val": 146509000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 146509000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 140486000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025Q4I"
            }
          ]
        }
      },
      "DeferredTaxAssetsGoodwillAndIntangibleAssets": {
        "label": "Deferred Tax Assets, Goodwill and Intangible Assets",
        "description": "Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from intangible assets including goodwill.",
        "units": {
          "USD": [
            {
              "end": "2019-12-31",
              "val": 0,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-12-31",
              "val": 1468159000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 1468159000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-12-31",
              "val": 1392471000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 1392471000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-12-31",
              "val": 1350434000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 1350434000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-12-31",
              "val": 1325236000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 1325236000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-12-31",
              "val": 1301338000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 1301338000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 1283968000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025Q4I"
            }
          ]
        }
      },
      "DeferredTaxAssetsGross": {
        "label": "Deferred Tax Assets, Gross",
        "description": "Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.",
        "units": {
          "USD": [
            {
              "end": "2010-12-31",
              "val": 52666000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-12-31",
              "val": 72495000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 72495000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 75643000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 75643000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-12-31",
              "val": 85217000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 85217000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-12-31",
              "val": 80137000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 80137000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 92238000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 92238000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 81086000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 81086000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 61123000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 61123000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 74308000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 74308000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-12-31",
              "val": 90161000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 90161000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-12-31",
              "val": 1570604000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 1570604000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-12-31",
              "val": 1563916000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 1564329000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-12-31",
              "val": 1606019000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 1606019000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-12-31",
              "val": 1611385000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 1611385000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-12-31",
              "val": 1591373000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 1591373000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 1542278000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025Q4I"
            }
          ]
        }
      },
      "DeferredTaxAssetsLiabilitiesNet": {
        "label": "Deferred Tax Assets, Net",
        "description": "Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, without jurisdictional netting.",
        "units": {
          "USD": [
            {
              "end": "2010-12-31",
              "val": 49913000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-12-31",
              "val": 38935000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 38935000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 38339000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 38339000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-12-31",
              "val": 44232000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 44232000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-12-31",
              "val": 40052000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 40052000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 51397000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 51397000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 67827000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 67827000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 49267000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 49267000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 64223000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 64223000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-12-31",
              "val": 63917000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 63917000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-12-31",
              "val": 1517140000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 1517140000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-12-31",
              "val": 1503143000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 1503143000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-12-31",
              "val": 1541880000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 1541880000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-12-31",
              "val": 1559913000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 1559913000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-12-31",
              "val": 1522119000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 1522119000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 1488387000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025Q4I"
            }
          ]
        }
      },
      "DeferredTaxAssetsLiabilitiesNetCurrent": {
        "label": "Deferred Tax Assets, Net, Current",
        "description": "Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, netted by jurisdiction and classified as current.",
        "units": {
          "USD": [
            {
              "end": "2013-12-31",
              "val": 28636000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-12-31",
              "val": 37053000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 37053000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2014-12-31",
              "val": 37053000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2014-12-31",
              "val": 37053000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "end": "2014-12-31",
              "val": 37053000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 29911000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 29972000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 30090000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 0,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015Q4I"
            }
          ]
        }
      },
      "DeferredTaxAssetsNetNoncurrent": {
        "label": "Deferred Tax Assets, Net of Valuation Allowance, Noncurrent",
        "description": "Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards classified as noncurrent.",
        "units": {
          "USD": [
            {
              "end": "2009-12-31",
              "val": 61535000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "end": "2009-12-31",
              "val": 61535000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "end": "2009-12-31",
              "val": 61535000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2009Q4I"
            },
            {
              "end": "2010-06-30",
              "val": 44171000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2010Q2I"
            },
            {
              "end": "2010-09-30",
              "val": 43778000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2010Q3I"
            },
            {
              "end": "2010-12-31",
              "val": 42439000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "end": "2010-12-31",
              "val": 42439000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "end": "2010-12-31",
              "val": 42439000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2010-12-31",
              "val": 42439000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2010-12-31",
              "val": 42439000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-03-31",
              "val": 38024000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "end": "2011-03-31",
              "val": 40092000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2011Q1I"
            },
            {
              "end": "2011-06-30",
              "val": 28546000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2011-06-30",
              "val": 33920000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 22945000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2011-09-30",
              "val": 28933000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 22337000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 22337000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2011-12-31",
              "val": 22337000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "end": "2011-12-31",
              "val": 22337000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "end": "2011-12-31",
              "val": 22337000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 17612000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2012-03-31",
              "val": 25655000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 29853000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 27189000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 21609000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 21609000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "end": "2012-12-31",
              "val": 21609000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "end": "2012-12-31",
              "val": 21609000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "end": "2012-12-31",
              "val": 21609000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 28417000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 30622000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 28822000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 15766000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 15766000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "end": "2013-12-31",
              "val": 15766000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "end": "2013-12-31",
              "val": 15766000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "end": "2013-12-31",
              "val": 15766000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 22739000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 20456000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 19714000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 3099000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 3099000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2014-12-31",
              "val": 3099000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2014-12-31",
              "val": 3099000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "end": "2014-12-31",
              "val": 3099000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 14630000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 16014000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 14542000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 51416000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 51416000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2015-12-31",
              "val": 51416000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2015-12-31",
              "val": 51416000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "end": "2015-12-31",
              "val": 51416000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 57527000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 60051000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 68918000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 67844000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 67844000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "end": "2016-12-31",
              "val": 67844000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
              "val": 67844000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "end": "2016-12-31",
              "val": 67844000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 60068000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 61783000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 73532000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 50059000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 49334000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 49334000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 49334000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 49334000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 45524000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 45859000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 47435000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 64689000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 64689000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 64689000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 64689000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 64689000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 57151000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 59050000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 63150000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 64007000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019Q4I"
            }
          ]
        }
      },
      "DeferredTaxAssetsOther": {
        "label": "Deferred Tax Assets, Other",
        "description": "Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences, classified as other.",
        "units": {
          "USD": [
            {
              "end": "2010-12-31",
              "val": 929000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2021-12-31",
              "val": 15645000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-12-31",
              "val": 16645000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 16645000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-12-31",
              "val": 13228000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 13228000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-12-31",
              "val": 12282000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 12282000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 649000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025Q4I"
            }
          ]
        }
      },
      "DeferredTaxAssetsTaxCreditCarryforwards": {
        "label": "Deferred Tax Assets, Tax Credit Carryforwards",
        "description": "Amount, before allocation of a valuation allowances, of deferred tax assets attributable to deductible tax credit carryforwards including, but not limited to, research, foreign, general business, alternative minimum tax, and other deductible tax credit carryforwards.",
        "units": {
          "USD": [
            {
              "end": "2010-12-31",
              "val": 7080000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-12-31",
              "val": 8075000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 8075000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 8806000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 8806000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-12-31",
              "val": 9362000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 9362000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-12-31",
              "val": 1446000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 1446000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 1932000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 1932000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 679000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 679000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 792000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 792000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 115000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 115000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-12-31",
              "val": 1801000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 1801000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-12-31",
              "val": 905000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 905000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-12-31",
              "val": 5637000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2021Q4I"
            }
          ]
        }
      },
      "DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost": {
        "label": "Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost",
        "description": "Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from share-based compensation.",
        "units": {
          "USD": [
            {
              "end": "2010-12-31",
              "val": 7919000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-12-31",
              "val": 9490000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 9490000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 9908000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 9908000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-12-31",
              "val": 9100000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 9100000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-12-31",
              "val": 11964000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 11964000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 16523000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 16523000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 16399000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 16399000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 10074000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 10074000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 8571000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 8571000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-12-31",
              "val": 8416000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 8416000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-12-31",
              "val": 10842000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 10842000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-12-31",
              "val": 13576000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 13576000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-12-31",
              "val": 19469000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 19469000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-12-31",
              "val": 25054000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 25054000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-12-31",
              "val": 29255000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 29255000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 30975000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025Q4I"
            }
          ]
        }
      },
      "DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals": {
        "label": "Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals",
        "description": "Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from reserves and accruals.",
        "units": {
          "USD": [
            {
              "end": "2010-12-31",
              "val": 9247000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-12-31",
              "val": 18236000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 18236000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 19703000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 19703000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-12-31",
              "val": 26729000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 26729000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-12-31",
              "val": 32888000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 17203000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 17455000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 17455000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 22954000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 22954000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 12547000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 12547000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 24769000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 24769000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-12-31",
              "val": 39264000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 39264000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-12-31",
              "val": 34469000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 34469000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-12-31",
              "val": 47641000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 47641000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-12-31",
              "val": 32759000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 32759000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-12-31",
              "val": 62891000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 62891000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-12-31",
              "val": 67221000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 67221000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 61496000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025Q4I"
            }
          ]
        }
      },
      "DeferredTaxAssetsUnrealizedCurrencyLosses": {
        "label": "Deferred Tax Assets, Unrealized Currency Losses",
        "description": "Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from unrealized losses on foreign currency transactions.",
        "units": {
          "USD": [
            {
              "end": "2010-12-31",
              "val": 5000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-12-31",
              "val": 33000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 33000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 43000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 43000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-12-31",
              "val": 48000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 48000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-12-31",
              "val": 637000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 637000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 649000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 649000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 1634000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 1634000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 1928000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 1928000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 1158000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 1158000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-12-31",
              "val": 1589000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 1589000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-12-31",
              "val": 2939000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 2939000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-12-31",
              "val": 10008000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2021Q4I"
            }
          ]
        }
      },
      "DeferredTaxAssetsValuationAllowance": {
        "label": "Deferred Tax Assets, Valuation Allowance",
        "description": "Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.",
        "units": {
          "USD": [
            {
              "end": "2010-12-31",
              "val": 6079000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-12-31",
              "val": 20224000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 20224000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 27056000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 27056000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-06-30",
              "val": 30300000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 30300000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 35108000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 35108000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 35400000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 35400000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 35400000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 32498000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 32498000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 32700000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 32800000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 32800000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 31685000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 31685000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 31700000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 31700000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-12-31",
              "val": 256000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 256000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 278000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 278000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 251000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 251000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-12-31",
              "val": 1086000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 1086000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-12-31",
              "val": 1325000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 1325000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-12-31",
              "val": 12938000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 12938000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-12-31",
              "val": 23286000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 23286000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-12-31",
              "val": 14991000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 14991000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-12-31",
              "val": 19390000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 19390000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 11498000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025Q4I"
            }
          ]
        }
      },
      "DeferredTaxExpenseFromStockOptionsExercised": {
        "label": "Deferred Tax Expense from Stock Options Exercised",
        "description": "Amount of deferred tax expense from write-off of the deferred tax asset related to deductible stock options at exercise.",
        "units": {
          "USD": [
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 1900000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 500000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015"
            }
          ]
        }
      },
      "DeferredTaxLiabilities": {
        "label": "Deferred Tax Liabilities, Net",
        "description": "Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences without jurisdictional netting.",
        "units": {
          "USD": [
            {
              "end": "2010-12-31",
              "val": -3326000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-12-31",
              "val": 13336000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011Q4I"
            }
          ]
        }
      },
      "DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets": {
        "label": "Deferred Tax Liabilities, Intangible Assets",
        "description": "Amount of deferred tax liability attributable to taxable temporary differences from intangible assets other than goodwill.",
        "units": {
          "USD": [
            {
              "end": "2019-12-31",
              "val": 0,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-12-31",
              "val": 35689000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 35689000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-12-31",
              "val": 28989000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 28989000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-12-31",
              "val": 26008000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 26008000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-12-31",
              "val": 25097000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 25097000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-12-31",
              "val": 28868000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 28868000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 16357000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025Q4I"
            }
          ]
        }
      },
      "DeferredTaxLiabilitiesOther": {
        "label": "Deferred Tax Liabilities, Other",
        "description": "Amount of deferred tax liability attributable to taxable temporary differences classified as other.",
        "units": {
          "USD": [
            {
              "end": "2010-12-31",
              "val": 864000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2021-12-31",
              "val": 6931000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-12-31",
              "val": 3438000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 3438000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-12-31",
              "val": 3570000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 3570000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-12-31",
              "val": 4511000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 4511000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 14426000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025Q4I"
            }
          ]
        }
      },
      "DeferredTaxLiabilitiesPrepaidExpenses": {
        "label": "Deferred Tax Liabilities, Prepaid Expenses",
        "description": "Amount of deferred tax consequences attributable to taxable temporary differences derived from prepaid expenses.",
        "units": {
          "USD": [
            {
              "end": "2011-12-31",
              "val": 560000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 345000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 345000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-12-31",
              "val": 557000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 557000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-12-31",
              "val": 709000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 709000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 601000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 601000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 969000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 969000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 751000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 751000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 902000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 902000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-12-31",
              "val": 1341000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 1341000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-12-31",
              "val": 1720000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 1720000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-12-31",
              "val": 6931000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2021Q4I"
            }
          ]
        }
      },
      "DeferredTaxLiabilitiesPropertyPlantAndEquipment": {
        "label": "Deferred Tax Liabilities, Property, Plant and Equipment",
        "description": "Amount of deferred tax liability attributable to taxable temporary differences from property, plant, and equipment.",
        "units": {
          "USD": [
            {
              "end": "2010-12-31",
              "val": -5103000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-12-31",
              "val": 12776000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 12776000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 9903000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 9903000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-12-31",
              "val": 5320000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 5320000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-12-31",
              "val": 6878000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 6878000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 8555000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 8555000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 12034000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 12034000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 7522000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 7522000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 8320000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 8320000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-12-31",
              "val": 23817000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 23817000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-12-31",
              "val": 14730000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 14730000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-12-31",
              "val": 11915000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 12328000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-12-31",
              "val": 11407000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 11407000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-12-31",
              "val": 7814000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 7814000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-12-31",
              "val": 16485000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 16485000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 11610000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025Q4I"
            }
          ]
        }
      },
      "DeferredTaxLiabilitiesUndistributedForeignEarnings": {
        "label": "Deferred Tax Liabilities, Undistributed Foreign Earnings",
        "description": "Amount of deferred tax liability attributable to taxable temporary differences from undistributed earnings of subsidiary and other recognized entity not within country of domicile. Includes, but is not limited to, other basis differences.",
        "units": {
          "USD": [
            {
              "end": "2016-12-31",
              "val": 0,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 3305000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 3305000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 612000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 612000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-12-31",
              "val": 0,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019Q4I"
            }
          ]
        }
      },
      "DeferredTaxLiabilityNotRecognizedAmountOfUnrecognizedDeferredTaxLiabilityUndistributedEarningsOfForeignSubsidiaries": {
        "label": "Deferred Tax Liability Not Recognized, Amount of Unrecognized Deferred Tax Liability, Undistributed Earnings of Foreign Subsidiaries",
        "description": "Amount of deferred tax liability not recognized because of the exceptions to comprehensive recognition of deferred taxes related to undistributed earnings of foreign subsidiaries.",
        "units": {
          "USD": [
            {
              "end": "2017-12-31",
              "val": 14700000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 14700000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 14700000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 14700000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 294300000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 294300000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 294300000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 294300000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-12-31",
              "val": 452600000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019Q4I"
            }
          ]
        }
      },
      "DepreciationAndAmortization": {
        "label": "Depreciation, Depletion and Amortization, Nonproduction",
        "description": "The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production.",
        "units": {
          "USD": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": 9964000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2009-01-01",
              "end": "2009-06-30",
              "val": 4979000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2009-01-01",
              "end": "2009-09-30",
              "val": 7582000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 10204000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 10204000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-03-31",
              "val": 2944000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2010Q1"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 5955000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 5955000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 8694000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 8694000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 11386000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 11386000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 11386000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 2979000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 2979000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2011Q1"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 6109000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 6109000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 9099000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 9099000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 12112000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 12112000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 12112000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 2753000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 2753000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 5905000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 5905000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 9214000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 13440000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 13440000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 13400000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 3855000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 7087000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 13887000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 13900000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 16800000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 14800000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 17900000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 17900000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 18000000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 18000000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 18000000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 24000000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 24000000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 24000000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 37700000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 37700000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 37700000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 54700000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 54700000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 48700000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 79000000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 73100000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 80100000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2020"
            }
          ]
        }
      },
      "DepreciationDepletionAndAmortization": {
        "label": "Depreciation, Depletion and Amortization",
        "description": "The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.",
        "units": {
          "USD": [
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 12544000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 17811000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 4944000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 8789000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 12647000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 12647000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 16825000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 16825000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 4776000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 4776000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 9130000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 9130000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 13469000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 13469000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 17856000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 17856000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 17856000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 4308000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 4308000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 8638000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 8638000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 13141000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 13141000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 18004000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 18004000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 18004000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 4792000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 4792000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 9885000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 9885000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-04-01",
              "end": "2016-06-30",
              "val": 5093000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2016Q2"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 16786000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 16786000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": 6901000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2016Q3"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 24002000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 24002000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 24002000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 7867000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 7867000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 16743000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 16743000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-04-01",
              "end": "2017-06-30",
              "val": 8876000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-04-01",
              "end": "2017-06-30",
              "val": 8876000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2017Q2"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 26715000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 26715000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": 9972000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": 9972000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2017Q3"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 37739000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 37739000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 37739000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 11434000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 11434000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 24066000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 24066000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": 12632000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": 12632000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2018Q2"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 38185000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 38185000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 14119000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 14119000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2018Q3"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 54727000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 54727000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 54727000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 22678000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 18316000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 46169000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 37488000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 23491000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 19172000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2019Q2"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 57194000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 57194000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 19706000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 19706000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2019Q3"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 78990000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 78990000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 78990000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 20738000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 20738000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 44283000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 44283000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": 23545000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": 23545000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2020Q2"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 68769000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 68769000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 24486000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 24486000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2020Q3"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 93538000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 93538000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 93538000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 25635000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 25635000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 51527000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 51527000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 25892000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 25892000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2021Q2"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 79141000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 79141000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 27614000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 27614000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2021Q3"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 108729000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 108729000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 108729000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 29626000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 29626000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 59907000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 59907000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": 30281000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": 30281000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2022Q2"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 92096000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 92096000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": 32189000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": 32189000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2022Q3"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 125793000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 125793000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 125793000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 35820000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 35820000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 71639000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 71639000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 35819000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 35819000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2023Q2"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 108669000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 108669000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 37030000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 37030000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2023Q3"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 142401000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 142401000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 142401000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 32946000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 32946000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 69112000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 69112000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 36166000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 36166000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2024Q2"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 106905000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 106905000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 37793000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 37793000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2024Q3"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 145034000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 145034000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 39148000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 39148000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 79724000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 79724000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 40576000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 40576000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q2"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 135441000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-07-01",
              "end": "2025-09-30",
              "val": 55717000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 237436000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": 56548000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": 96679000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2026-04-01",
              "end": "2026-06-30",
              "val": 40131000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2"
            }
          ]
        }
      },
      "DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet": {
        "label": "Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net",
        "description": "Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments.",
        "units": {
          "USD": [
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 10500000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 10100000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2019Q3"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 15600000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 15600000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 12700000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 12700000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": 3000000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": -3000000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2020Q2"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 600000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 600000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": -12100000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": -12100000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2020Q3"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 12400000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": -600000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": -13000000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 14100000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 14700000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3"
            }
          ]
        }
      },
      "EarningsPerShareBasic": {
        "label": "Earnings Per Share, Basic",
        "description": "The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.",
        "units": {
          "USD/shares": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": 1.2,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2009-01-01",
              "end": "2009-06-30",
              "val": 0.11,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2009-04-01",
              "end": "2009-06-30",
              "val": 0.07,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2009Q2"
            },
            {
              "start": "2009-01-01",
              "end": "2009-09-30",
              "val": -0.64,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2009-07-01",
              "end": "2009-09-30",
              "val": -0.72,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2009Q3"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": -0.45,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": -0.45,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-03-31",
              "val": 0.2,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2010Q1"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 0.63,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 0.63,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2010-04-01",
              "end": "2010-06-30",
              "val": 0.43,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-04-01",
              "end": "2010-06-30",
              "val": 0.43,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2010Q2"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 0.85,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 0.85,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2010-07-01",
              "end": "2010-09-30",
              "val": 0.22,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-07-01",
              "end": "2010-09-30",
              "val": 0.22,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2010Q3"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 0.98,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 0.98,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 0.98,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 0.21,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 0.21,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2011Q1"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 0.35,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 0.35,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2011-04-01",
              "end": "2011-06-30",
              "val": 0.14,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-04-01",
              "end": "2011-06-30",
              "val": 0.14,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2011Q2"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 0.6,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 0.6,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": 0.25,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": 0.25,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2011Q3"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 0.86,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 0.86,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 0.86,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 0.26,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 0.26,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 0.62,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 0.62,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": 0.35,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": 0.35,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2012Q2"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 0.61,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 0.61,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 0,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 0,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2012Q3"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 0.73,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 0.73,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 0.73,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": -0.52,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": -0.52,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": -0.16,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": -0.16,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-04-01",
              "end": "2013-06-30",
              "val": 0.36,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-04-01",
              "end": "2013-06-30",
              "val": 0.36,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2013Q2"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 0.27,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 0.27,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 0.43,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 0.43,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2013Q3"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 0.8,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 0.8,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 0.8,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 0.4,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 0.4,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 0.84,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 0.84,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2014-04-01",
              "end": "2014-06-30",
              "val": 0.44,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-04-01",
              "end": "2014-06-30",
              "val": 0.44,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2014Q2"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 1.31,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 1.31,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": 0.47,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": 0.47,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2014Q3"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 1.81,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 1.81,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 1.81,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 0.45,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 0.45,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 0.84,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 0.84,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2015-04-01",
              "end": "2015-06-30",
              "val": 0.39,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-04-01",
              "end": "2015-06-30",
              "val": 0.39,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2015Q2"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 1.19,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 1.19,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2015-07-01",
              "end": "2015-09-30",
              "val": 0.35,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-07-01",
              "end": "2015-09-30",
              "val": 0.35,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2015Q3"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 1.8,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 1.8,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 1.8,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 0.51,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 0.51,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 1.14,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 1.14,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-04-01",
              "end": "2016-06-30",
              "val": 0.63,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-04-01",
              "end": "2016-06-30",
              "val": 0.63,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2016Q2"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 1.78,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 1.78,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": 0.64,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": 0.64,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2016Q3"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 2.38,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 2.38,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 2.38,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 0.87,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 0.87,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 1.73,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 1.73,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-04-01",
              "end": "2017-06-30",
              "val": 0.86,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-04-01",
              "end": "2017-06-30",
              "val": 0.86,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2017Q2"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 2.76,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 2.76,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": 1.03,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": 1.03,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2017Q3"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 2.89,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 2.89,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 2.89,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 1.2,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 1.2,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 2.52,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 2.52,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": 1.32,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": 1.32,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2018Q2"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 3.78,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 3.78,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 1.26,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 1.26,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2018Q3"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 5,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 5,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 5,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 0.9,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 0.9,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 2.74,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 2.74,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 1.84,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 1.84,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2019Q2"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 4.03,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 4.03,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 1.29,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 1.29,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2019Q3"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 5.57,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 5.57,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 5.57,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 19.32,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 19.32,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 18.78,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 18.78,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": -0.52,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": -0.52,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2020Q2"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 20.54,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 20.54,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 1.77,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 1.77,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2020Q3"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 22.55,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 22.55,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 22.55,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 2.54,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 2.54,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 5.06,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 5.06,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 2.53,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 2.53,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2021Q2"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 7.36,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 7.36,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 2.29,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 2.29,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2021Q3"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 9.78,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 9.78,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 9.78,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 1.71,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 1.71,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 3.15,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 3.15,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": 1.44,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": 1.44,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2022Q2"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 4.08,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 4.08,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": 0.93,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": 0.93,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2022Q3"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 4.62,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 4.62,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 4.62,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 1.14,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 1.14,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 2.6,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 2.6,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 1.46,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 1.46,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2023Q2"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 4.19,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 4.19,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 1.59,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 1.59,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2023Q3"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 5.82,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 5.82,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 5.82,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 1.4,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 1.4,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 2.68,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 2.68,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 1.28,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 1.28,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2024Q2"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 4.23,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 4.23,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 1.55,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 1.55,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2024Q3"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 5.63,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 5.63,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 1.27,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 1.27,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 2.98,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 2.98,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 1.72,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 1.72,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q2"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 3.77,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-07-01",
              "end": "2025-09-30",
              "val": 0.78,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 5.66,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": 1.58,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": 3.09,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2026-04-01",
              "end": "2026-06-30",
              "val": 1.51,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2"
            }
          ]
        }
      },
      "EarningsPerShareDiluted": {
        "label": "Earnings Per Share, Diluted",
        "description": "The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.",
        "units": {
          "USD/shares": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": 1.18,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2009-01-01",
              "end": "2009-06-30",
              "val": 0.11,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2009-04-01",
              "end": "2009-06-30",
              "val": 0.07,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2009Q2"
            },
            {
              "start": "2009-01-01",
              "end": "2009-09-30",
              "val": -0.64,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2009-07-01",
              "end": "2009-09-30",
              "val": -0.72,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2009Q3"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": -0.45,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": -0.45,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-03-31",
              "val": 0.19,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2010Q1"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 0.61,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 0.61,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2010-04-01",
              "end": "2010-06-30",
              "val": 0.42,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-04-01",
              "end": "2010-06-30",
              "val": 0.42,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2010Q2"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 0.83,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 0.83,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2010-07-01",
              "end": "2010-09-30",
              "val": 0.22,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-07-01",
              "end": "2010-09-30",
              "val": 0.22,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2010Q3"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 0.95,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 0.95,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 0.95,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 0.2,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 0.2,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2011Q1"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 0.34,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 0.34,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2011-04-01",
              "end": "2011-06-30",
              "val": 0.14,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-04-01",
              "end": "2011-06-30",
              "val": 0.14,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2011Q2"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 0.58,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 0.58,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": 0.24,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": 0.24,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2011Q3"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 0.83,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 0.83,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 0.83,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 0.26,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 0.26,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 0.6,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 0.6,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": 0.34,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": 0.34,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2012Q2"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 0.59,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 0.59,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 0,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 0,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2012Q3"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 0.71,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 0.71,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 0.71,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": -0.52,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": -0.52,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": -0.16,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": -0.16,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-04-01",
              "end": "2013-06-30",
              "val": 0.36,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-04-01",
              "end": "2013-06-30",
              "val": 0.36,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2013Q2"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 0.26,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 0.26,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 0.42,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 0.42,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2013Q3"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 0.78,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 0.78,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 0.78,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 0.39,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 0.39,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 0.82,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 0.82,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2014-04-01",
              "end": "2014-06-30",
              "val": 0.43,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-04-01",
              "end": "2014-06-30",
              "val": 0.43,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2014Q2"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 1.29,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 1.29,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": 0.47,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": 0.47,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2014Q3"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 1.77,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 1.77,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 1.77,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 0.44,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 0.44,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 0.83,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 0.83,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2015-04-01",
              "end": "2015-06-30",
              "val": 0.39,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-04-01",
              "end": "2015-06-30",
              "val": 0.39,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2015Q2"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 1.17,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 1.17,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2015-07-01",
              "end": "2015-09-30",
              "val": 0.34,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-07-01",
              "end": "2015-09-30",
              "val": 0.34,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2015Q3"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 1.77,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 1.77,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 1.77,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 0.5,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 0.5,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 1.11,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 1.11,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-04-01",
              "end": "2016-06-30",
              "val": 0.62,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-04-01",
              "end": "2016-06-30",
              "val": 0.62,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2016Q2"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 1.74,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 1.74,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": 0.63,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": 0.63,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2016Q3"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 2.33,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 2.33,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 2.33,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 0.85,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 0.85,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 1.7,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 1.7,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-04-01",
              "end": "2017-06-30",
              "val": 0.85,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-04-01",
              "end": "2017-06-30",
              "val": 0.85,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2017Q2"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 2.71,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 2.71,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": 1.01,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": 1.01,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2017Q3"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 2.83,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 2.83,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 2.83,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 1.17,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 1.17,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 2.48,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 2.48,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": 1.3,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": 1.3,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2018Q2"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 3.71,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 3.71,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 1.24,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 1.24,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2018Q3"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 4.92,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 4.92,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 4.92,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 0.89,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 0.89,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 2.71,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 2.71,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 1.83,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 1.83,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2019Q2"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 4,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 4,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 1.28,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 1.28,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2019Q3"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 5.53,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 5.53,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 5.53,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 19.21,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 19.21,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 18.7,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 18.7,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": -0.52,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": -0.52,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2020Q2"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 20.45,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 20.45,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 1.76,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 1.76,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2020Q3"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 22.41,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 22.41,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 22.41,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 2.51,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 2.51,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 5.02,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 5.02,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 2.51,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 2.51,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2021Q2"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 7.29,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 7.29,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 2.28,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 2.28,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2021Q3"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 9.69,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 9.69,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 9.69,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 1.7,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 1.7,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 3.13,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 3.13,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": 1.44,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": 1.44,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2022Q2"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 4.07,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 4.07,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": 0.93,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": 0.93,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2022Q3"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 4.61,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 4.61,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 4.61,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 1.14,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 1.14,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 2.6,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 2.6,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 1.46,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 1.46,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2023Q2"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 4.18,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 4.18,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 1.58,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 1.58,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2023Q3"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 5.81,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 5.81,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 5.81,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 1.39,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 1.39,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 2.68,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 2.68,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 1.28,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 1.28,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2024Q2"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 4.23,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 4.23,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 1.55,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 1.55,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2024Q3"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 5.62,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 5.62,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 1.27,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 1.27,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 2.98,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 2.98,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 1.72,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 1.72,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q2"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 3.77,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-07-01",
              "end": "2025-09-30",
              "val": 0.78,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 5.65,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": 1.57,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": 3.09,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2026-04-01",
              "end": "2026-06-30",
              "val": 1.51,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2"
            }
          ]
        }
      },
      "EffectiveIncomeTaxRateContinuingOperations": {
        "label": "Effective Income Tax Rate Reconciliation, Percent",
        "description": "Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.",
        "units": {
          "pure": [
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 0.0766,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 0.272,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 0.272,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 0.2582,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 0.2582,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 0.2582,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 0.228,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 0.224,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": 0.221,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2012Q2"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 0.276,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 0.459,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2012Q3"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 0.3038,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 0.3038,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 0.304,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": -0.075,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": -0.075,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": -7.459,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": -7.459,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-04-01",
              "end": "2013-06-30",
              "val": 0.22,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-04-01",
              "end": "2013-06-30",
              "val": 0.22,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2013Q2"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 1.083,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 0.459,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 0.176,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 0.176,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2013Q3"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 0.3097,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 0.31,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 0.31,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 0.235,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 0.235,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 0.253,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 0.253,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2014-04-01",
              "end": "2014-06-30",
              "val": 0.268,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-04-01",
              "end": "2014-06-30",
              "val": 0.268,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2014Q2"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 0.244,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 0.244,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": 0.228,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": 0.228,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2014Q3"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 0.234,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 0.234,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 0.234,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 0.238,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 0.238,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 0.249,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 0.249,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2015-04-01",
              "end": "2015-06-30",
              "val": 0.262,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-04-01",
              "end": "2015-06-30",
              "val": 0.262,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2015Q2"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 0.248,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 0.248,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2015-07-01",
              "end": "2015-09-30",
              "val": 0.243,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-07-01",
              "end": "2015-09-30",
              "val": 0.243,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2015Q3"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 0.226,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 0.226,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 0.226,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 0.234,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 0.234,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 0.232,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 0.232,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-04-01",
              "end": "2016-06-30",
              "val": 0.232,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-04-01",
              "end": "2016-06-30",
              "val": 0.232,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2016Q2"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 0.216,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 0.216,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": 0.184,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": 0.184,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2016Q3"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 0.211,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 0.211,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 0.211,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": -0.114,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": -0.114,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 0.054,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 0.054,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-04-01",
              "end": "2017-06-30",
              "val": 0.177,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-04-01",
              "end": "2017-06-30",
              "val": 0.177,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2017Q2"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 0.105,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 0.105,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": 0.179,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": 0.179,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2017Q3"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 0.357,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 0.357,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 0.357,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 0.029,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 0.029,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 0.049,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 0.049,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": 0.066,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": 0.066,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2018Q2"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 0.102,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 0.102,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 0.194,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 0.194,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2018Q3"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 0.124,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 0.124,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 0.124,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 0.104,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 0.104,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 0.186,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 0.186,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 0.222,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 0.222,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2019Q2"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 0.191,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 0.191,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 0.202,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 0.202,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2019Q3"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 0.2,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 0.2,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 0.2,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": -27.453,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": -27.453,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 74.37,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 74.37,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": 0.448,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": 0.448,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2020Q2"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": -8.835,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": -8.835,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 0.245,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 0.245,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2020Q3"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": -3.686,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": -3.686,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": -3.686,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 0.234,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 0.234,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 0.246,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 0.246,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 0.257,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 0.257,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2021Q2"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 0.267,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 0.267,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 0.309,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 0.309,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2021Q3"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 0.237,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 0.237,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 0.237,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 0.284,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 0.284,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 0.316,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 0.316,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": 0.35,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": 0.35,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2022Q2"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 0.339,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 0.339,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": 0.407,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": 0.407,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2022Q3"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 0.396,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 0.396,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 0.396,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 0.348,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 0.348,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 0.348,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 0.348,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 0.348,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 0.348,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2023Q2"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 0.314,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 0.314,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 0.251,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 0.251,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2023Q3"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 0.306,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 0.306,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 0.306,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 0.337,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 0.337,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 0.333,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 0.333,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 0.329,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 0.329,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2024Q2"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 0.322,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 0.322,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 0.301,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 0.301,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2024Q3"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 0.308,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 0.308,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 0.336,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 0.336,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 0.306,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 0.306,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 0.282,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 0.282,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q2"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 0.328,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-07-01",
              "end": "2025-09-30",
              "val": 0.401,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 0.299,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": 0.243,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": 0.257,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2026-04-01",
              "end": "2026-06-30",
              "val": 0.272,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2"
            }
          ]
        }
      },
      "EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate": {
        "label": "Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent",
        "description": "Percentage of domestic federal statutory tax rate applicable to pretax income (loss).",
        "units": {
          "pure": [
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 0.35,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 0.35,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 0.35,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 0.35,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 0.35,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 0.35,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 0.35,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 0.35,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 0.35,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 0.35,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 0.35,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 0.35,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 0.35,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 0.35,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 0.35,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 0.35,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 0.35,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 0.35,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 0.35,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 0.35,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 0.35,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 0.35,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 0.35,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 0.35,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 0.35,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 0.35,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 0.35,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 0.35,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 0.35,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 0.35,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 0.35,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 0.21,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 0.21,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 0.21,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 0.21,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 0.21,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 0.21,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 0.21,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 0.21,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 0.21,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 0.21,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 0.21,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 0.21,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 0.21,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 0.21,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 0.21,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 0.21,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 0.21,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 0.21,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 0.21,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 0.21,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 0.21,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            }
          ]
        }
      },
      "EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance": {
        "label": "Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent",
        "description": "Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the valuation allowance for deferred tax assets.",
        "units": {
          "pure": [
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 0,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": -0.0014,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": -0.0014,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": -0.0014,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 0,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 0,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 0,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 0.001,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 0.011,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 0.011,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 0.017,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 0.017,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 0.017,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": -0.013,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": -0.013,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": -0.013,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 0.009,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 0.009,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            }
          ]
        }
      },
      "EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential": {
        "label": "Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent",
        "description": "Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to statutory income tax expense (benefit) outside of the country of domicile.",
        "units": {
          "pure": [
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": -0.1499,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": -0.1118,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": -0.1118,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": -0.1499,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": -0.1499,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": -0.1499,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": -0.2,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": -0.2,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": -0.2,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": -0.2041,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": -0.204,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": -0.204,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": -0.164,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": -0.164,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": -0.164,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": -0.162,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": -0.162,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": -0.162,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": -0.063,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": -0.063,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": -0.063,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": -0.18,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": -0.18,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": -0.18,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": -0.067,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": -0.067,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": -0.067,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": -0.051,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": -0.051,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": -0.051,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 0.056,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 0.056,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 0.056,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": -0.02,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": -0.02,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": -0.02,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 0.033,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 0.033,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 0.033,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 0.014,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 0.014,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 0.014,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": -0.02,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": -0.02,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            }
          ]
        }
      },
      "EffectiveIncomeTaxRateReconciliationNondeductibleExpenseImpairmentLosses": {
        "label": "Effective Income Tax Rate Reconciliation, Nondeductible Expense, Impairment Losses, Percent",
        "description": "Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to impairment loss.",
        "units": {
          "pure": [
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 0,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 0,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 0,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 0.1519,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 0.1519,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 0.152,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 0.1529,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 0.153,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 0.153,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 0,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 0,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 0,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015"
            }
          ]
        }
      },
      "EffectiveIncomeTaxRateReconciliationNondeductibleExpenseMealsAndEntertainment": {
        "label": "Effective Income Tax Rate Reconciliation, Nondeductible Expense, Meals and Entertainment, Percent",
        "description": "Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to meals and entertainment expense.",
        "units": {
          "pure": [
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": -0.0131,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 0.005,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 0.0062,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011"
            }
          ]
        }
      },
      "EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther": {
        "label": "Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Percent",
        "description": "Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other nondeductible expenses.",
        "units": {
          "pure": [
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 0,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 0.0129,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 0.0129,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 0.0129,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 0,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 0,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 0,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 0.005,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            }
          ]
        }
      },
      "EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost": {
        "label": "Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Payment Arrangement, Percent",
        "description": "Percentage of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to nondeductible expense for share-based payment arrangement.",
        "units": {
          "pure": [
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": -0.0653,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 0.0155,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 0.0155,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 0.0167,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 0.0167,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 0.0167,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": -0.0115,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": -0.0115,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": -0.012,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 0.0047,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 0.005,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 0.005,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 0.01,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 0.01,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 0.01,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 0.016,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 0.016,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 0.016,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 0.012,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 0.012,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 0.012,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": -0.063,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": -0.063,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": -0.063,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": -0.034,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": -0.034,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": -0.028,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": -0.012,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": -0.003,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": -0.003,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 0.011,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 0.011,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 0.011,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": -0.003,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": -0.003,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": -0.003,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 0.021,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 0.021,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 0.021,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 0.03,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 0.03,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 0.03,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 0.034,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 0.034,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 0.03,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            }
          ]
        }
      },
      "EffectiveIncomeTaxRateReconciliationOtherAdjustments": {
        "label": "Effective Income Tax Rate Reconciliation, Other Adjustments, Percent",
        "description": "Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other adjustments.",
        "units": {
          "pure": [
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": -0.064,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": -0.0164,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": -0.0114,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 0.0079,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 0.0141,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 0.0141,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": -0.0102,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": -0.0102,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": -0.01,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": -0.0192,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": -0.019,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": -0.019,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 0.022,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 0.022,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 0.022,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 0.007,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 0.007,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 0.007,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 0.02,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 0.02,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 0.018,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 0.005,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": -0.01,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": -0.01,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 0.002,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 0.002,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": -0.004,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 0.017,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 0.008,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 0.007,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": -0.003,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": -0.004,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 0.003,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": -0.003,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": -0.008,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": -0.008,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 0.003,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 0.003,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 0.003,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": -0.002,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": -0.002,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": -0.002,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": -0.001,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": -0.001,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            }
          ]
        }
      },
      "EffectiveIncomeTaxRateReconciliationRepatriationOfForeignEarnings": {
        "label": "Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Percent",
        "description": "Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to the repatriation of foreign earnings.",
        "units": {
          "pure": [
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 0.002,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 0.015,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 0.015,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 0.041,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 0.041,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 0.041,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 0.019,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 0.019,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 0.019,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 0,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 0,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 0.027,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2021"
            }
          ]
        }
      },
      "EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes": {
        "label": "Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent",
        "description": "Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to state and local income tax expense (benefit), net of federal tax expense (benefit).",
        "units": {
          "pure": [
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 0.0189,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 0.0297,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 0.0297,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 0.0158,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 0.0158,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 0.0158,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 0.0236,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 0.0236,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 0.024,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 0.0254,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 0.025,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 0.025,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 0.016,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 0.016,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 0.016,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 0.015,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 0.015,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 0.015,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 0.021,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 0.021,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 0.021,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 0.014,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 0.014,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 0.014,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 0.013,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 0.013,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 0.013,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 0.017,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 0.017,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 0.017,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 0.018,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 0.018,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 0.015,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 0.022,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 0.022,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 0.022,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 0.037,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 0.037,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 0.037,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 0.029,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 0.029,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 0.029,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 0.022,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 0.022,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 0.044,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            }
          ]
        }
      },
      "EffectiveIncomeTaxRateReconciliationTaxCutsAndJobsActOf2017Percent": {
        "label": "Effective Income Tax Rate Reconciliation, Tax Cuts and Jobs Act, Percent",
        "description": "Percentage of reported income tax expense (benefit) in excess of (less than) expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operations, attributable to Tax Cuts and Jobs Act.",
        "units": {
          "pure": [
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 0.021,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 0,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 0,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": -0.005,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": -0.005,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 0,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2021"
            }
          ]
        }
      },
      "EffectiveIncomeTaxRateReconciliationTaxSettlements": {
        "label": "Effective Income Tax Rate Reconciliation, Tax Settlement, Percent",
        "description": "Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to income tax settlements. Including, but not limited to, domestic tax settlement, foreign tax settlement, state and local tax settlement, and other tax settlements.",
        "units": {
          "pure": [
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 0,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 0,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": -0.014,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": -0.014,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": -0.014,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 0,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 0,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 0,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 0.019,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 0.019,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 0.019,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 0.001,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 0.001,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 0.001,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 0,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 0,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            }
          ]
        }
      },
      "EffectOfExchangeRateOnCashAndCashEquivalents": {
        "label": "Effect of Exchange Rate on Cash and Cash Equivalents",
        "description": "Amount of increase (decrease) from the effect of exchange rate changes on cash and cash equivalent balances held in foreign currencies.",
        "units": {
          "USD": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": -355000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2009-01-01",
              "end": "2009-06-30",
              "val": 8000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2009-01-01",
              "end": "2009-09-30",
              "val": 58000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": -59000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": -59000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-03-31",
              "val": -198000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2010Q1"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": -250000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": -250000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": -29000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": -29000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": -139000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": -139000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": -139000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 173000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 173000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2011Q1"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 77000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 77000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": -18000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": -18000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": -93000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": -93000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": -93000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 9000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 9000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": -4000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": -4000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 41000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 41000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 28000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 28000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 28000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": -37000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": -37000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 53000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 53000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": -520000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": -520000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": -504000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": -504000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": -504000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 106000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 106000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 245000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 245000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 720000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 720000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": -1934000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": -1934000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": -1934000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": -1780000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": -1780000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": -1454000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": -1454000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": -2893000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": -2893000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": -3007000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": -3007000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": -3007000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 446000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 446000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 156000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 156000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 320000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 320000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": -3417000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": -3417000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": -3374000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 2430000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 2430000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 3613000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 3640000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 4781000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 4806000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 5510000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 5544000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 5544000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 1715000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 1715000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": -1923000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": -1923000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": -2890000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": -2890000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": -4733000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": -4733000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 1089000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 1089000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 1467000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 1467000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": -2098000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": -2098000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 2282000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": -11007000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": -7172000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": -568000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            }
          ]
        }
      },
      "EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents": {
        "label": "Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents",
        "description": "Amount of increase (decrease) from effect of exchange rate changes on cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; held in foreign currencies. Excludes amounts for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.",
        "units": {
          "USD": [
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": -4733000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 2282000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 2282000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": -11007000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": -7172000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": -568000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 10480000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 10480000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 10480000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": -7487000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": -7487000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": -3511000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": -3511000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": -10241000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": -10241000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": -12117000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": -12117000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": -12117000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": -1826000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": -1826000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 4978000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 4978000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": -20422000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": -20422000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": -11514000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": -11514000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": -11514000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 2221000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 2221000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": -3523000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": -3523000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": -11205000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": -11205000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 4671000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 4671000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 4671000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": -9004000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": -9004000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": -9196000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": -9196000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 6008000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 6008000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": -21153000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": -21153000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 8480000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 8480000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 35876000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 35876000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 34502000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 35025000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": -6387000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": -6689000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            }
          ]
        }
      },
      "EffectOnFutureEarningsAmount": {
        "label": "Effect on Future Earnings, Amount",
        "description": "The quantified amount of the future effect on earnings.",
        "units": {
          "USD": [
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 4000000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 4000000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 4000000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 4000000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 4000000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2012"
            }
          ]
        }
      },
      "EmployeeRelatedLiabilitiesCurrent": {
        "label": "Employee-related Liabilities, Current",
        "description": "Total of the carrying values as of the balance sheet date of obligations incurred through that date and payable for obligations related to services received from employees, such as accrued salaries and bonuses, payroll taxes and fringe benefits. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).",
        "units": {
          "USD": [
            {
              "end": "2010-12-31",
              "val": 26551000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2010-12-31",
              "val": 26551000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2010-12-31",
              "val": 26551000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-06-30",
              "val": 28725000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 30395000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 41827000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 41827000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2011-12-31",
              "val": 41827000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "end": "2011-12-31",
              "val": 41827000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "end": "2011-12-31",
              "val": 41827000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 30656000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 35031000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 34352000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 39621000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 39621000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "end": "2012-12-31",
              "val": 39621000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "end": "2012-12-31",
              "val": 39621000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "end": "2012-12-31",
              "val": 39621000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 31246000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 39577000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 38270000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 43029000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 43029000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "end": "2013-12-31",
              "val": 43029000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "end": "2013-12-31",
              "val": 43029000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "end": "2013-12-31",
              "val": 43029000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 32400000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 43332000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 39265000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 44610000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 44610000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2014-12-31",
              "val": 44610000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2014-12-31",
              "val": 44610000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "end": "2014-12-31",
              "val": 44610000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 38022000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 48448000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 48150000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 55430000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 55430000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2015-12-31",
              "val": 55430000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2015-12-31",
              "val": 55430000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "end": "2015-12-31",
              "val": 55430000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 44201000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 55720000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 65848000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 79214000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 79214000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "end": "2016-12-31",
              "val": 79214000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
              "val": 79214000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "end": "2016-12-31",
              "val": 79214000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 56292000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 74179000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 84418000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 103004000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 103004000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 103004000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 103004000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 103004000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 69581000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 87697000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 102109000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 127109000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 127109000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 127109000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 127109000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 127109000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 87603000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 111831000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 131337000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 162486000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 162486000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2019-12-31",
              "val": 162486000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2019-12-31",
              "val": 162486000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2019-12-31",
              "val": 162486000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 87526000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-06-30",
              "val": 82256000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 126112000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 170106000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 170106000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2020-12-31",
              "val": 170106000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2020-12-31",
              "val": 170106000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2020-12-31",
              "val": 170106000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 153898000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 212886000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 229743000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 288355000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 288355000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 288355000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 288355000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 288355000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 156272000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 152849000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 137754000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 149508000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 149508000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 149508000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 149508000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 149508000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 171354000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 211889000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 203712000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 220862000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 220862000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 220862000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 220862000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 220862000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 191904000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 232052000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 241638000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 248003000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 248003000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2024-12-31",
              "val": 248003000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2024-12-31",
              "val": 248003000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2024-12-31",
              "val": 248003000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 192101000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 224346000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 210499000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 226149000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2025-12-31",
              "val": 226149000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 226149000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 205321000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 245230000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "EmployeeStockOwnershipPlanESOPWeightedAveragePurchasePriceOfSharesPurchased": {
        "label": "Employee Stock Ownership Plan (ESOP), Weighted Average Purchase Price of Shares Purchased",
        "description": "Weighted average purchase price of capital shares purchased through an employee stock ownership plan.",
        "units": {
          "USD/shares": [
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 36.66,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 48.65,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 48.65,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 59.93,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 59.93,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 59.93,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 96.95,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 96.95,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 136.73,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019"
            }
          ]
        }
      },
      "EquityMethodInvestmentOwnershipPercentage": {
        "label": "Equity Method Investment, Ownership Percentage",
        "description": "The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.",
        "units": {
          "pure": [
            {
              "end": "2016-07-25",
              "val": 0.17,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-07-25",
              "val": 0.17,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2016-07-25",
              "val": 0.17,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2016-07-25",
              "val": 0.17,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2016Q2I"
            }
          ]
        }
      },
      "EquityMethodInvestmentRealizedGainLossOnDisposal": {
        "label": "Equity Method Investment, Realized Gain (Loss) on Disposal",
        "description": "Amount of gain (loss) on sale or disposal of an equity method investment.",
        "units": {
          "USD": [
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 0,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 0,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 0,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 15769000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 15769000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": -15800000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 15800000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 15800000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 15800000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 15800000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 15800000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 15800000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 15800000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019Q2"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 15769000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 15769000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 15769000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 15769000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 15769000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 0,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 0,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 0,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 0,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 0,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2021"
            }
          ]
        }
      },
      "EquityMethodInvestments": {
        "label": "Equity Method Investments",
        "description": "This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.",
        "units": {
          "USD": [
            {
              "end": "2015-12-31",
              "val": 0,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "end": "2015-12-31",
              "val": 0,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-09-30",
              "val": 46268000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 45061000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 45061000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "end": "2016-12-31",
              "val": 45061000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
              "val": 45061000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "end": "2016-12-31",
              "val": 45061000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 43940000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 41724000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 52875000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 54606000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 54606000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 54606000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 54606000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 54606000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 52829000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 49128000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 47996000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 45913000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 45900000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 45913000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 42000000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-12-31",
              "val": 0,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019Q4I"
            }
          ]
        }
      },
      "EquitySecuritiesFvNi": {
        "label": "Equity Securities, FV-NI",
        "description": "Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).",
        "units": {
          "USD": [
            {
              "end": "2018-12-31",
              "val": 9862000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 9862000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-06-30",
              "val": 5887000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 5887000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            }
          ]
        }
      },
      "EquitySecuritiesWithoutReadilyDeterminableFairValueAmount": {
        "label": "Equity Securities without Readily Determinable Fair Value, Amount",
        "description": "Amount of investment in equity security without readily determinable fair value.",
        "units": {
          "USD": [
            {
              "end": "2018-12-31",
              "val": 9862000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-12-31",
              "val": 5887000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 5900000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2019-12-31",
              "val": 5900000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2019-12-31",
              "val": 5900000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2019-12-31",
              "val": 5900000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 3000000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-06-30",
              "val": 2100000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 2100000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2021-09-30",
              "val": 8600000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            }
          ]
        }
      },
      "EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossAnnualAmount": {
        "label": "Equity Securities without Readily Determinable Fair Value, Impairment Loss, Annual Amount",
        "description": "Amount of impairment loss on investment in equity security without readily determinable fair value.",
        "units": {
          "USD": [
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 3975000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 3975000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 3975000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 2900000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 3787000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 3787000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 3787000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 5887000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 0,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 0,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 0,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 0,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 4990000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2023"
            }
          ]
        }
      },
      "EscrowDepositDisbursementsRelatedToPropertyAcquisition1": {
        "label": "Escrow Deposit Disbursements Related to Property Acquisition",
        "description": "Amount of escrow deposit disbursements related to property acquisition in noncash investing or financing transactions.",
        "units": {
          "USD": [
            {
              "end": "2019-09-27",
              "val": 300000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            }
          ]
        }
      },
      "ExcessTaxBenefitFromShareBasedCompensationFinancingActivities": {
        "label": "Excess Tax Benefit from Share-based Compensation, Financing Activities",
        "description": "Amount of cash inflow from realized tax benefit related to deductible compensation cost reported on the entity's tax return for equity instruments in excess of the compensation cost for those instruments recognized for financial reporting purposes.",
        "units": {
          "USD": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": 144000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": -637000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 3965000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 3965000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 0,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 5988000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 11391000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 11391000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 8043000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 16745000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 16745000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 18140000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 18140000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 17187000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 17187000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 17187000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 7739000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 7739000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 15331000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 15331000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 21849000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 21849000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 27103000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 27103000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 27103000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 13568000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 13568000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 16161000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 16161000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 18887000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 18887000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 21393000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 21393000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 21393000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 4779000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 4779000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 6207000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 6207000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 8663000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 8663000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 10396000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 10396000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 10396000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 8082000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 8082000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 10697000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 10697000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 13943000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 13943000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 16773000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 16773000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 16773000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 0,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 0,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 0,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 0,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 0,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2018"
            }
          ]
        }
      },
      "ExcessTaxBenefitFromShareBasedCompensationOperatingActivities": {
        "label": "Excess Tax Benefit from Share-based Compensation, Operating Activities",
        "description": "Amount of cash outflow for realized tax benefit related to deductible compensation cost reported on the entity's tax return for equity instruments in excess of the compensation cost for those instruments recognized for financial reporting purposes.",
        "units": {
          "USD": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": 144000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": -637000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 3965000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 0,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 5988000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 8043000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 16745000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 16745000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 18140000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 18140000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 7739000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 7739000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 15331000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 15331000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 21849000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 21849000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 27103000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 13568000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 13568000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 16161000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 16161000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 18887000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 18887000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 21393000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": -21393000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 4779000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 4779000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 6207000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 6207000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 8663000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 8663000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 10396000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": -10224000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": -10224000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 8082000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 8082000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 10697000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 10697000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 13943000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 13943000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": -15888000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": -15888000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": -15888000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 0,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 0,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 0,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 0,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 0,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2018"
            }
          ]
        }
      },
      "FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetGainLossIncludedInEarnings1": {
        "label": "Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings",
        "description": "Amount of gain (loss) recognized in income from asset measured at fair value on recurring basis using unobservable input (level 3).",
        "units": {
          "USD": [
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": -12000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 56000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 350,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 358000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1"
            }
          ]
        }
      },
      "FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetIssues": {
        "label": "Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Issuances",
        "description": "Amount of issuances of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.",
        "units": {
          "USD": [
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 2000000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 2000000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 2000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2017"
            }
          ]
        }
      },
      "FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValue": {
        "label": "Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value",
        "description": "Fair value of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.",
        "units": {
          "USD": [
            {
              "end": "2016-12-31",
              "val": 2047000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
              "val": 2047000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "end": "2016-12-31",
              "val": 2047,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-06-30",
              "val": 4063000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 4157000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 4476,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 4476000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 4859000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            }
          ]
        }
      },
      "FederalIncomeTaxExpenseBenefitContinuingOperations": {
        "label": "Federal Income Tax Expense (Benefit), Continuing Operations",
        "description": "Amount of current and deferred federal income tax expense (benefit) attributable to income (loss) from continuing operations.",
        "units": {
          "USD": [
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": -2633000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 23193000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 23193000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 21091000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 21091000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 21091000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 22382000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 22382000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 22382000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 24288000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 24288000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 24288000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 39139000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 39139000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 39139000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 35275000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 35275000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 35275000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 65029000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 65029000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 65029000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 106938000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 106938000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 106938000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 29799000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 29799000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 29799000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 77763000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 77763000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 77763000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 43542000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 43542000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 43542000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 131785000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 131785000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 131785000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 132471000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 132471000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 132471000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 117527000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 117527000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 117527000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 96605000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 96605000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 67347000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            }
          ]
        }
      },
      "FinanceLeaseInterestExpense": {
        "label": "Finance Lease, Interest Expense",
        "description": "Amount of interest expense on finance lease liability.",
        "units": {
          "USD": [
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 392000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1"
            }
          ]
        }
      },
      "FinanceLeaseLiability": {
        "label": "Finance Lease, Liability",
        "description": "Present value of lessee's discounted obligation for lease payments from finance lease.",
        "units": {
          "USD": [
            {
              "end": "2019-03-31",
              "val": 56100000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            }
          ]
        }
      },
      "FinanceLeaseLiabilityCurrent": {
        "label": "Finance Lease, Liability, Current",
        "description": "Present value of lessee's discounted obligation for lease payments from finance lease, classified as current.",
        "units": {
          "USD": [
            {
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 56100000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            }
          ]
        }
      },
      "FinanceLeaseLiabilityPaymentsDue": {
        "label": "Finance Lease, Liability, Payment, Due",
        "description": "Amount of lessee's undiscounted obligation for lease payments for finance lease.",
        "units": {
          "USD": [
            {
              "end": "2019-03-31",
              "val": 56100000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            }
          ]
        }
      },
      "FinanceLeaseLiabilityPaymentsDueAfterYearFive": {
        "label": "Finance Lease, Liability, to be Paid, after Year Five",
        "description": "Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "units": {
          "USD": [
            {
              "end": "2019-03-31",
              "val": 0,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            }
          ]
        }
      },
      "FinanceLeaseLiabilityPaymentsDueYearFive": {
        "label": "Finance Lease, Liability, to be Paid, Year Five",
        "description": "Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "units": {
          "USD": [
            {
              "end": "2019-03-31",
              "val": 0,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            }
          ]
        }
      },
      "FinanceLeaseLiabilityPaymentsDueYearFour": {
        "label": "Finance Lease, Liability, to be Paid, Year Four",
        "description": "Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "units": {
          "USD": [
            {
              "end": "2019-03-31",
              "val": 0,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            }
          ]
        }
      },
      "FinanceLeaseLiabilityPaymentsDueYearThree": {
        "label": "Finance Lease, Liability, to be Paid, Year Three",
        "description": "Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "units": {
          "USD": [
            {
              "end": "2019-03-31",
              "val": 0,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            }
          ]
        }
      },
      "FinanceLeaseLiabilityPaymentsDueYearTwo": {
        "label": "Finance Lease, Liability, to be Paid, Year Two",
        "description": "Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "units": {
          "USD": [
            {
              "end": "2019-03-31",
              "val": 0,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            }
          ]
        }
      },
      "FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear": {
        "label": "Finance Lease, Liability, to be Paid, Remainder of Fiscal Year",
        "description": "Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid in remainder of current fiscal year.",
        "units": {
          "USD": [
            {
              "end": "2019-03-31",
              "val": 56100000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            }
          ]
        }
      },
      "FinanceLeaseLiabilityUndiscountedExcessAmount": {
        "label": "Finance Lease, Liability, Undiscounted Excess Amount",
        "description": "Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for finance lease.",
        "units": {
          "USD": [
            {
              "end": "2019-03-31",
              "val": 0,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            }
          ]
        }
      },
      "FinanceLeasePrincipalPayments": {
        "label": "Finance Lease, Principal Payments",
        "description": "Amount of cash outflow for principal payment on finance lease.",
        "units": {
          "USD": [
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 0,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 2190000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 2190000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 45773000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 45773000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 45773000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 45773000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 0,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 0,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 0,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 0,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2021"
            }
          ]
        }
      },
      "FinanceLeaseRightOfUseAsset": {
        "label": "Finance Lease, Right-of-Use Asset, after Accumulated Amortization",
        "description": "Amount, after accumulated amortization, of right-of-use asset from finance lease.",
        "units": {
          "USD": [
            {
              "end": "2019-03-31",
              "val": 50655000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            }
          ]
        }
      },
      "FinanceLeaseRightOfUseAssetAmortization": {
        "label": "Finance Lease, Right-of-Use Asset, Amortization",
        "description": "Amount of amortization expense attributable to right-of-use asset from finance lease.",
        "units": {
          "USD": [
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 409000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1"
            }
          ]
        }
      },
      "FinanceLeaseWeightedAverageDiscountRatePercent": {
        "label": "Finance Lease, Weighted Average Discount Rate, Percent",
        "description": "Weighted average discount rate for finance lease calculated at point in time.",
        "units": {
          "pure": [
            {
              "end": "2019-03-31",
              "val": 0.042,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            }
          ]
        }
      },
      "FiniteLivedIntangibleAssetsAccumulatedAmortization": {
        "label": "Finite-Lived Intangible Assets, Accumulated Amortization",
        "description": "Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.",
        "units": {
          "USD": [
            {
              "end": "2011-06-30",
              "val": 775000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 1910000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 3178000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 3178000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 7548000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 7548000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-12-31",
              "val": 10488000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 10488000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-12-31",
              "val": 13540000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 13540000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 16139000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 16139000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 19304000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 19304000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 24404000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 24404000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 30936000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 30936000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-12-31",
              "val": 37088000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 37088000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2019-12-31",
              "val": 37088000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2019-12-31",
              "val": 35944000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-06-30",
              "val": 39881000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 46213000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 41317000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 41317000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2020-12-31",
              "val": 41317000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2020-12-31",
              "val": 41317000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2020-12-31",
              "val": 41317000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 45224000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 49130000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 53194000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 57428000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 57428000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 57428000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 57428000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 57428000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 61661000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 42835000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 46979000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 51180000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 51180000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 51180000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 51180000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 51180000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 55324000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 59468000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 63612000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 67081000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 67081000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 67081000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 67081000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 67081000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 66023000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 62641000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 67285000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 71852000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 71852000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2024-12-31",
              "val": 71852000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2024-12-31",
              "val": 71852000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2024-12-31",
              "val": 71852000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 74044000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 78652000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 83261000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 87871000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2025-12-31",
              "val": 87871000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 87871000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 92479000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 97089000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive": {
        "label": "Finite-Lived Intangible Asset, Expected Amortization, after Year Five",
        "description": "Amount of amortization for asset, excluding financial asset and goodwill, lacking physical substance with finite life expected to be recognized after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "units": {
          "USD": [
            {
              "end": "2012-12-31",
              "val": 23338000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-12-31",
              "val": 10286000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-12-31",
              "val": 7687000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 5114000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 4230000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 2436000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 939000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-12-31",
              "val": 385000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-06-30",
              "val": 61853000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-12-31",
              "val": 48069000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-12-31",
              "val": 35732000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-12-31",
              "val": 24492000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-12-31",
              "val": 13602000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-09-30",
              "val": 28021000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 28020000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 21692000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 21692000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 21692000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 21693000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 18078000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 18078000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths": {
        "label": "Finite-Lived Intangible Asset, Expected Amortization, Year One",
        "description": "Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "units": {
          "USD": [
            {
              "end": "2012-12-31",
              "val": 4537000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-12-31",
              "val": 3053000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-12-31",
              "val": 2600000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 2600000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 3355000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 6379000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 6134000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-12-31",
              "val": 3845000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-09-30",
              "val": 15622000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 15622000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 14366000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 14366000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 15392000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 15692000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 14997000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 14997000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 16501000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 16501000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 15335000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 15335000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 15335000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 15335000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 18574000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 18574000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 18574000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 18651000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 17923000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 17923000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 17923000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 17922000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 15607000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 15607000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear": {
        "label": "Finite-Lived Intangible Asset, Expected Amortization, Remainder of Fiscal Year",
        "description": "Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in remainder of current fiscal year.",
        "units": {
          "USD": [
            {
              "end": "2012-09-30",
              "val": 1134000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2013-03-31",
              "val": 1971000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 1325000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 662000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2014-03-31",
              "val": 1951000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 1300000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 649000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2015-03-31",
              "val": 1950000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 1300000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 650000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2016-03-31",
              "val": 1950000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 1678000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 840000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2017-03-31",
              "val": 4713000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 3543000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 2215000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2018-03-31",
              "val": 4843000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 3149000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 1571000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2019-03-31",
              "val": 4544000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 3045000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 1493000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2020-03-31",
              "val": 2544000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-06-30",
              "val": 8178000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 3907000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2021-03-31",
              "val": 11715000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 7809000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 4158000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2022-03-31",
              "val": 11459000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 7536000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 4144000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2023-03-31",
              "val": 12357000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 8213000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 4069000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2024-03-31",
              "val": 13977000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 9287000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 4643000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2025-03-31",
              "val": 13827000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 9219000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 4610000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2026-03-31",
              "val": 13314000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 8705000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "FiniteLivedIntangibleAssetsAmortizationExpenseYearFive": {
        "label": "Finite-Lived Intangible Asset, Expected Amortization, Year Five",
        "description": "Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "units": {
          "USD": [
            {
              "end": "2012-09-30",
              "val": 4470000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 4470000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 2610000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 2629000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 2629000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 2600000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 2600000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 2600000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 2600000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 2600000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 2592000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 2592000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 2592000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 2582000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 2582000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 3336000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 3336000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 3334000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 3339000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 3349000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 3349000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 2116000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 2116000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 2116000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 2116000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 1495000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 1495000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 1495000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 1495000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 555000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 555000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-06-30",
              "val": 13081000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-12-31",
              "val": 12428000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-12-31",
              "val": 12849000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-12-31",
              "val": 11992000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-12-31",
              "val": 10890000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-09-30",
              "val": 14505000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 14505000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 6328000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 6328000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 6328000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 6328000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 3615000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 3615000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "FiniteLivedIntangibleAssetsAmortizationExpenseYearFour": {
        "label": "Finite-Lived Intangible Asset, Expected Amortization, Year Four",
        "description": "Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "units": {
          "USD": [
            {
              "end": "2012-09-30",
              "val": 4470000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 4470000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 2610000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 2629000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 2629000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 2600000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 2600000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 2600000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 2600000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 2600000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 2600000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 2600000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 2600000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 2592000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 2592000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 3346000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 3346000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 3336000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 3758000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 3772000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 3772000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 3389000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 3389000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 3389000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 3388000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 2116000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 2116000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 2116000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 2116000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 1495000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 1495000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-06-30",
              "val": 14022000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 12805000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 12805000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 12428000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 12428000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 13455000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 13455000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 12849000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 12849000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 14353000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 14353000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 11992000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 11992000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 11992000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 11992000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 14505000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 14505000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 14505000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 14505000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 14505000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 14505000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 14505000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 14505000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 6328000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 6328000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "FiniteLivedIntangibleAssetsAmortizationExpenseYearThree": {
        "label": "Finite-Lived Intangible Asset, Expected Amortization, Year Three",
        "description": "Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "units": {
          "USD": [
            {
              "end": "2012-09-30",
              "val": 4493000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 4470000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 2610000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 2629000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 2629000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 2600000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 2600000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 2600000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 2600000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 2600000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 2600000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 2600000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 2600000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 2600000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 2600000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 3353000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 3353000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 3346000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 5873000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 5887000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 5887000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 3869000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 3882000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 3855000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 3854000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 3389000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 3389000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 3389000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 3389000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 2116000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 2116000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-06-30",
              "val": 14642000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 13745000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 13745000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 12805000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 12805000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 13831000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 13831000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 13455000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 13455000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 14959000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 14959000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 14353000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 14353000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 14353000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 14353000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 15607000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 15607000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 15607000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 15607000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 14505000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 14505000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 14505000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 14505000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 14505000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 14505000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo": {
        "label": "Finite-Lived Intangible Asset, Expected Amortization, Year Two",
        "description": "Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "units": {
          "USD": [
            {
              "end": "2012-09-30",
              "val": 4537000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 4492000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 2616000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 2635000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 2635000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 2600000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 2600000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 2600000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 2600000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 2600000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 2600000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 2600000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 2600000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 2600000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 2600000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 3353000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 3353000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 3353000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 5989000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 6002000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 6002000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 6265000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 6343000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 6184000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 6171000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 3847000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 3838000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 3844000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 3825000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 3372000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 3372000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-06-30",
              "val": 15899000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 14366000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 14366000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 13745000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 13745000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 14772000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 14997000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 13831000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 13831000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 15335000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 15335000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 14959000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 14959000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 14959000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 14959000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 17969000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 17969000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 17969000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 17969000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 15607000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 15607000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 15607000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 15607000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 14505000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 14505000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "FiniteLivedIntangibleAssetsFutureAmortizationExpense": {
        "label": "Finite-Lived Intangible Assets, Future Amortization Expense (Deprecated 2012-01-31)",
        "description": "The aggregate estimated amortization expense for succeeding fiscal years for intangible assets subject to amortization.",
        "units": {
          "USD": [
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 51325000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 50190000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 50022000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 48876000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 47901000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            }
          ]
        }
      },
      "FiniteLivedIntangibleAssetsGross": {
        "label": "Finite-Lived Intangible Assets, Gross",
        "description": "Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.",
        "units": {
          "USD": [
            {
              "end": "2011-04-29",
              "val": 52100000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q1I"
            },
            {
              "end": "2011-09-30",
              "val": 52100000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 53200000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 53200000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-06-30",
              "val": 53325000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 53325000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 53325000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 53325000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "end": "2012-12-31",
              "val": 53325000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "end": "2012-12-31",
              "val": 53325000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 53325000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 53485000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 53485000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 53485000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 53485000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "end": "2013-12-31",
              "val": 53485000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "end": "2013-12-31",
              "val": 53485000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "end": "2013-12-31",
              "val": 53485000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 53485000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 53485000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 53485000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 53485000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 53485000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2014-12-31",
              "val": 53485000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2014-12-31",
              "val": 53485000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "end": "2014-12-31",
              "val": 53485000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 53485000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 53485000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 53485000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 53485000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 53485000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2015-12-31",
              "val": 53485000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2015-12-31",
              "val": 53485000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "end": "2015-12-31",
              "val": 53485000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 53485000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 59516000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 59516000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 59516000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 59516000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "end": "2016-12-31",
              "val": 59516000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
              "val": 59516000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "end": "2016-12-31",
              "val": 59516000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 67564000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 67634000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 67634000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 68116000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 68116000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 68116000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 68116000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 68116000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 68114000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 68114000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 68114000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 68114000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 68114000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 68114000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 68114000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 68114000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 68114000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 68114000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 68114000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 68114000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 68114000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2019-12-31",
              "val": 68114000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2019-12-31",
              "val": 68114000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2019-12-31",
              "val": 66970000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 68114000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-06-30",
              "val": 186814000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 186413000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 177610000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 177610000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2020-12-31",
              "val": 177610000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2020-12-31",
              "val": 177610000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2020-12-31",
              "val": 177610000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 177610000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 177610000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 182642000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 183242000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 183242000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 183242000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 183242000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 183242000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 183242000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 149742000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 157262000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 157262000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 157262000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 157262000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 157262000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 157262000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 157262000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 157262000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 157262000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 156662000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 156662000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 156662000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 156662000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 156662000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 197631000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 185231000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 185231000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 185231000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 185231000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2024-12-31",
              "val": 185231000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2024-12-31",
              "val": 185231000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2024-12-31",
              "val": 185231000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 178431000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 178431000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 178431000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 178431000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2025-12-31",
              "val": 178431000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 178431000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 178431000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 178432000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "FiniteLivedIntangibleAssetsNet": {
        "label": "Finite-Lived Intangible Assets, Net",
        "description": "Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.",
        "units": {
          "USD": [
            {
              "end": "2011-06-30",
              "val": 51325000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 50190000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 50022000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 50022000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2011-12-31",
              "val": 50022000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 48876000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 47901000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 46817000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 45777000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 45777000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 25429000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 24976000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 24362000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 23739000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 23739000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "end": "2013-12-31",
              "val": 23739000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "end": "2013-12-31",
              "val": 23739000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "end": "2013-12-31",
              "val": 23739000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 22637000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 21988000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 21337000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 20687000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 20687000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2014-12-31",
              "val": 20687000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2014-12-31",
              "val": 20687000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "end": "2014-12-31",
              "val": 20687000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 20037000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 19387000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 18737000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 18088000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 18088000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2015-12-31",
              "val": 18088000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2015-12-31",
              "val": 18088000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "end": "2015-12-31",
              "val": 18088000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 17438000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 22630000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 21792000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 20954000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 20954000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "end": "2016-12-31",
              "val": 20954000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
              "val": 20954000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "end": "2016-12-31",
              "val": 20954000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 27902000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 26783000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 25455000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 24454000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 24454000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 24454000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 24454000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 24454000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 23008000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 21127000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 19535000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 17920000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 17920000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 17920000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 17920000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 17920000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 16322000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 14829000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 13257000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 11768000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 11768000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2019-12-31",
              "val": 11768000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2019-12-31",
              "val": 11768000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2019-12-31",
              "val": 11768000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 10467000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-06-30",
              "val": 127675000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 128604000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 117035000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 117035000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2020-12-31",
              "val": 117035000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2020-12-31",
              "val": 117035000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2020-12-31",
              "val": 117035000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 113128000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 109222000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 110190000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 106556000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 109709000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 109709000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 109709000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 109709000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 103499000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 93817000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 91711000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 95720000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 95720000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 95720000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 95720000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 95720000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 93320000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 89296000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 82741000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 82118000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 82118000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 82118000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 82118000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 82118000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 121424000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 115705000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 115905000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 103488000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 103488000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2024-12-31",
              "val": 103488000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2024-12-31",
              "val": 103488000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2024-12-31",
              "val": 103488000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 102750000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 103485000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 98716000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 93933000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2025-12-31",
              "val": 93933000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 93933000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 100818000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 94927000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "FiniteLivedIntangibleAssetsUsefulLifeMaximum": {
        "label": "Finite-Lived Intangible Assets, Useful Life, Maximum (Deprecated 2012-01-31)",
        "description": "The maximum useful life of a major finite-lived intangible asset class. A major class is composed of intangible assets that can be grouped together because they are similar either by their nature or by their use in the operations of a company.",
        "units": {
          "Year": [
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 15,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011"
            }
          ]
        }
      },
      "FiniteLivedIntangibleAssetsUsefulLifeMinimum": {
        "label": "Finite-Lived Intangible Assets, Useful Life, Minimum (Deprecated 2012-01-31)",
        "description": "The minimum useful life of a major finite-lived intangible asset class. A major class is composed of intangible assets that can be grouped together because they are similar either by their nature or by their use in the operations of a company.",
        "units": {
          "Year": [
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 1,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011"
            }
          ]
        }
      },
      "FiniteLivedNoncompeteAgreementsGross": {
        "label": "Finite-Lived Noncompete Agreements, Gross",
        "description": "Gross carrying amount before accumulated amortization as of the balance sheet date of payments made to third parties in exchange for their agreement not to engage in specified competitive practices in specified geographic territories for a specified period of time.",
        "units": {
          "USD": [
            {
              "end": "2006-10-31",
              "val": 14000000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2006Q3I"
            },
            {
              "end": "2010-12-31",
              "val": 2200000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            }
          ]
        }
      },
      "FinitelivedIntangibleAssetsAcquired1": {
        "label": "Finite-lived Intangible Assets Acquired",
        "description": "Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition.",
        "units": {
          "USD": [
            {
              "start": "2016-04-01",
              "end": "2016-06-30",
              "val": 6000000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q2"
            }
          ]
        }
      },
      "ForeignCurrencyTransactionGainLossBeforeTax": {
        "label": "Foreign Currency Transaction Gain (Loss), before Tax",
        "description": "Amount before tax of foreign currency transaction realized and unrealized gain (loss) recognized in the income statement.",
        "units": {
          "USD": [
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": -300000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 600000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 600000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 0,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011"
            }
          ]
        }
      },
      "ForeignCurrencyTransactionGainLossRealized": {
        "label": "Foreign Currency Transaction Gain (Loss), Realized",
        "description": "Amount before tax of foreign currency transaction realized gain (loss) recognized in the income statement.",
        "units": {
          "USD": [
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": -3800000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": -3800000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": -4000000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": -4000000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": -4000000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": -8000000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": -8000000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": -8000000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 9000000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 9000000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 9000000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": -5600000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": -5600000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": -5600000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": -2000000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": -2000000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": -2000000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 6800000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 6800000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 6800000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": -13300000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": -13300000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": -13300000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": -43800000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": -43800000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": -43800000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": -7000000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": -7000000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": -7000000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": -21000000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": -21000000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 11300000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            }
          ]
        }
      },
      "ForeignIncomeTaxExpenseBenefitContinuingOperations": {
        "label": "Foreign Income Tax Expense (Benefit), Continuing Operations",
        "description": "Amount of current and deferred foreign income tax expense (benefit) attributable to income (loss) from continuing operations.",
        "units": {
          "USD": [
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 1220000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 1257000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 1257000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 516000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 516000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 516000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 1299000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 1299000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 1299000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 2163000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 2163000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 2163000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 2265000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 2265000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 2265000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 4238000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 4238000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 4238000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": -19068000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": -19068000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": -19068000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 17967000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 17967000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 17967000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 21630000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 21630000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 21630000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 25206000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 25206000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 25206000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": -1447222000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": -1447222000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": -1447222000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 86113000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 86113000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 86113000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 82657000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 82657000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 82657000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 53246000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 53246000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 53246000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 73906000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 73906000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 79846000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            }
          ]
        }
      },
      "FutureAmortizationExpenseRemainderOfFiscalYear": {
        "label": "Future Amortization Expense, Remainder of Fiscal Year (Deprecated 2012-01-31)",
        "description": "The amount of amortization expense expected to be recognized during the remainder of the current fiscal year.",
        "units": {
          "USD": [
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 2325000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 1163000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 3414000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 2268000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            }
          ]
        }
      },
      "FutureAmortizationExpenseYearFive": {
        "label": "Future Amortization Expense, Year Five (Deprecated 2012-01-31)",
        "description": "The amount of amortization expense expected to be recognized during year five of the five succeeding fiscal years.",
        "units": {
          "USD": [
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 4453000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011"
            }
          ]
        }
      },
      "FutureAmortizationExpenseYearFour": {
        "label": "Future Amortization Expense, Year Four (Deprecated 2012-01-31)",
        "description": "The amount of amortization expense expected to be recognized during year four of the five succeeding fiscal years.",
        "units": {
          "USD": [
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 4285000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 4285000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 4453000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 4452000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 4470000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            }
          ]
        }
      },
      "FutureAmortizationExpenseYearOne": {
        "label": "Future Amortization Expense, Year One (Deprecated 2012-01-31)",
        "description": "The amount of amortization expense expected to be recognized during year one of the five succeeding fiscal years.",
        "units": {
          "USD": [
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 4452000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 4452000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 4619000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 4519000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 4537000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            }
          ]
        }
      },
      "FutureAmortizationExpenseYearThree": {
        "label": "Future Amortization Expense, Year Three (Deprecated 2012-01-31)",
        "description": "The amount of amortization expense expected to be recognized during year three of the five succeeding fiscal years.",
        "units": {
          "USD": [
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 4307000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 4307000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 4475000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 4452000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 4470000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            }
          ]
        }
      },
      "FutureAmortizationExpenseYearTwo": {
        "label": "Future Amortization Expense, Year Two (Deprecated 2012-01-31)",
        "description": "The amount of amortization expense expected to be recognized during year two of the five succeeding fiscal years.",
        "units": {
          "USD": [
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 4352000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 4352000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 4519000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 4475000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 4493000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            }
          ]
        }
      },
      "GainContingencyPatentsAllegedlyInfringedUponNumber": {
        "label": "Gain Contingency, Patents Allegedly Infringed upon, Number",
        "description": "Number of entity's patents that another entity has allegedly infringed.",
        "units": {
          "Lawsuit": [
            {
              "end": "2017-11-14",
              "val": 26,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2017Q3I"
            }
          ],
          "patent": [
            {
              "end": "2018-12-11",
              "val": 3,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "start": "2018-12-01",
              "end": "2018-12-31",
              "val": 10,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-08-30",
              "val": 3,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q3I"
            }
          ]
        }
      },
      "GainContingencyPatentsFoundInfringedUponNumber": {
        "label": "Gain Contingency, Patents Found Infringed upon, Number",
        "description": "Number of entity's patents that another entity was found to have infringed.",
        "units": {
          "patent": [
            {
              "end": "2020-04-30",
              "val": 2,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            }
          ]
        }
      },
      "GainLossOnContractTermination": {
        "label": "Gain (Loss) on Contract Termination",
        "description": "Gain (loss) related to the termination of a contract between the parties. The termination may be due to many causes including early termination of a lease by a lessee, a breach of contract by one party, or a failure to perform.",
        "units": {
          "USD": [
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 6792000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 6800000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 6800000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019Q3"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 6792000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019"
            },
            {
              "start": "2022-10-01",
              "end": "2022-12-31",
              "val": -2300000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2022Q4"
            }
          ]
        }
      },
      "GainLossOnForeignCurrencyFairValueHedgeDerivatives": {
        "label": "Gain (Loss) on Foreign Currency Fair Value Hedge Derivatives",
        "description": "Amount of gain (loss) from the increase (decrease) in fair value of foreign currency derivatives and nonderivative instruments designated as fair value hedging instruments which were recognized in earnings, net of offsets by the gain (loss) on the hedged item to the extent that the fair value hedge was determined to be effective.",
        "units": {
          "USD": [
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 7700000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 2300000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2018Q3"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 10500000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 10100000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3"
            }
          ]
        }
      },
      "GainLossOnSaleOfPropertyPlantEquipment": {
        "label": "Gain (Loss) on Disposition of Property Plant Equipment",
        "description": "Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property.",
        "units": {
          "USD": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": -513000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2009-01-01",
              "end": "2009-06-30",
              "val": -11000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2009-01-01",
              "end": "2009-09-30",
              "val": -20000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": -37000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": -37000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": -11000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": -11000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": -60000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": -60000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": -61000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": -61000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 10000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 10000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 25000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": -1000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": -52000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": -74000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            }
          ]
        }
      },
      "GainLossOnSalesOfAssetsAndAssetImpairmentCharges": {
        "label": "Gain (Loss) on Sale of Assets and Asset Impairment Charges",
        "description": "Amount of gain (loss) from the difference between the sale price or salvage price and the book value of an asset that was sold or retired, and gain (loss) from the write down of assets from their carrying value to fair value.",
        "units": {
          "USD": [
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 0,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 0,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 0,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2018Q3"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": -29782000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": -22990000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": -22990000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 6792000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 6792000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2019Q3"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": -22990000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": -22990000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": -22990000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 0,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 0,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 0,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 0,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 0,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 0,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2021"
            }
          ]
        }
      },
      "GainLossOnTerminationOfLease": {
        "label": "Gain (Loss) on Termination of Lease",
        "description": "Amount of gain (loss) on termination of lease before expiration of lease term.",
        "units": {
          "USD": [
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 6792000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 6800000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 6800000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q3"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 6792000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 6792000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 0,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 0,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 0,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 0,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2021"
            }
          ]
        }
      },
      "GainLossRelatedToLitigationSettlement": {
        "label": "Gain (Loss) Related to Litigation Settlement",
        "description": "Amount of gain (loss) recognized in settlement of litigation and insurance claims. Excludes claims within an insurance entity's normal claims settlement process.",
        "units": {
          "USD": [
            {
              "start": "2009-01-01",
              "end": "2009-09-30",
              "val": -69673000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2009-07-01",
              "end": "2009-09-30",
              "val": -69673000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2009Q3"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": -69673000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": -69673000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 8666000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 8666000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2010-04-01",
              "end": "2010-06-30",
              "val": 8666000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-04-01",
              "end": "2010-06-30",
              "val": 8666000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2010Q2"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": -3310000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": -3310000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2010-07-01",
              "end": "2010-09-30",
              "val": -3310000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-07-01",
              "end": "2010-09-30",
              "val": -3310000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2010Q3"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": -4549000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": -4549000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": -4549000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 0,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 0,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2012"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 0,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 0,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": 0,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2018Q2"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 0,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 0,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2018Q3"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 51000000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 51000000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 51000000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 51000000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2019Q2"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 51000000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 51000000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 0,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 0,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2019Q3"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 51000000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 51000000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 51000000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 0,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 0,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 0,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": 0,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 0,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 0,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 0,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 0,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 0,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 0,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 43403000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 43403000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 43403000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 43403000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 43403000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 43403000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 0,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 43403000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 43403000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 0,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 0,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 0,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 0,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 0,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 0,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 0,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 0,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 0,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 0,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": -31127000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": -31127000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2024Q2"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": -31193000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": -66000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2024Q3"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": -30968000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": -30968000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": -4178000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": -4178000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": -4178000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 0,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": -4178000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-07-01",
              "end": "2025-09-30",
              "val": 0,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": -4178000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": -30632000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            }
          ]
        }
      },
      "GeneralAndAdministrativeExpense": {
        "label": "General and Administrative Expense",
        "description": "The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line.",
        "units": {
          "USD": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": 62154000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2009-01-01",
              "end": "2009-06-30",
              "val": 30007000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2009-04-01",
              "end": "2009-06-30",
              "val": 16539000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2009Q2"
            },
            {
              "start": "2009-01-01",
              "end": "2009-09-30",
              "val": 46231000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2009-07-01",
              "end": "2009-09-30",
              "val": 16224000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2009Q3"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 61718000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 61718000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-03-31",
              "val": 14951000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2010Q1"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 29956000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 29956000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2010-04-01",
              "end": "2010-06-30",
              "val": 15005000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-04-01",
              "end": "2010-06-30",
              "val": 15005000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2010Q2"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 46159000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 46159000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2010-07-01",
              "end": "2010-09-30",
              "val": 16203000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-07-01",
              "end": "2010-09-30",
              "val": 16203000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2010Q3"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 64790000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 64790000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 64790000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 18992000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 18992000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2011Q1"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 45086000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 45086000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2011-04-01",
              "end": "2011-06-30",
              "val": 26094000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-04-01",
              "end": "2011-06-30",
              "val": 26094000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2011Q2"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 66695000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 66695000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": 21609000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": 21609000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2011Q3"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 89152000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 89152000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 91595000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 22626000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 23511000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 44778000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 46532000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": 22152000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": 23021000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2012Q2"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 68670000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 71294000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 23892000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 24762000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2012Q3"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 95840000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 99295000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 99295000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 30348000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 30348000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 57375000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 57375000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-04-01",
              "end": "2013-06-30",
              "val": 27027000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-04-01",
              "end": "2013-06-30",
              "val": 27027000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2013Q2"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 84862000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 84862000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 27487000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 27487000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2013Q3"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 112752000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 112752000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 29179000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 56248000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-04-01",
              "end": "2014-06-30",
              "val": 27069000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 84533000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": 28285000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 114806000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2014"
            }
          ]
        }
      },
      "Goodwill": {
        "label": "Goodwill",
        "description": "Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.",
        "units": {
          "USD": [
            {
              "end": "2009-12-31",
              "val": 478000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "end": "2009-12-31",
              "val": 478000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "end": "2009-12-31",
              "val": 478000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "end": "2009-12-31",
              "val": 478000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009Q4I"
            },
            {
              "end": "2010-06-30",
              "val": 478000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2010Q2I"
            },
            {
              "end": "2010-09-30",
              "val": 478000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2010Q3I"
            },
            {
              "end": "2010-12-31",
              "val": 478000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "end": "2010-12-31",
              "val": 478000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "end": "2010-12-31",
              "val": 478000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2010-12-31",
              "val": 478000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2010-12-31",
              "val": 478000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2010-12-31",
              "val": 478000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-03-31",
              "val": 478000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2011Q1I"
            },
            {
              "end": "2011-04-29",
              "val": 135349000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2011-06-30",
              "val": 135768000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 135743000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 135383000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 135383000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2011-12-31",
              "val": 135383000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "end": "2011-12-31",
              "val": 135383000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "end": "2011-12-31",
              "val": 135383000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2011-12-31",
              "val": 135383000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 135827000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 135827000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 111162000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 99236000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 99236000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "end": "2012-12-31",
              "val": 99236000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "end": "2012-12-31",
              "val": 99236000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "end": "2012-12-31",
              "val": 99236000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2012-12-31",
              "val": 99236000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 58543000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 61713000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 61745000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 61623000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 85362000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "end": "2013-12-31",
              "val": 85362000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "end": "2013-12-31",
              "val": 85362000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "end": "2013-12-31",
              "val": 61623000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2013-12-31",
              "val": 61623000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 84388000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 83795000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 82926000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 61369000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 82056000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2014-12-31",
              "val": 82056000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2014-12-31",
              "val": 82056000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "end": "2014-12-31",
              "val": 61369000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2014-12-31",
              "val": 61369000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 81274000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 80590000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 79715000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 61074000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 79162000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2015-12-31",
              "val": 79162000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2015-12-31",
              "val": 79162000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "end": "2015-12-31",
              "val": 61074000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2015-12-31",
              "val": 61074000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 78606000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 83749000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 82987000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 61044000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 81998000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "end": "2016-12-31",
              "val": 81998000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
              "val": 81998000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "end": "2016-12-31",
              "val": 61044000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 61044000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 92447000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 91308000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 90070000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 64614000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 64614000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 64614000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 64029000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 64029000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 64029000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-12-31",
              "val": 63924000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 63924000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2019-12-31",
              "val": 63924000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2019-12-31",
              "val": 63924000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2019-12-31",
              "val": 63924000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-06-30",
              "val": 415536000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 427342000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 444817000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 444817000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2020-12-31",
              "val": 444817000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2020-12-31",
              "val": 444817000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2020-12-31",
              "val": 444817000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2020-12-31",
              "val": 444817000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 427561000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 432179000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 426594000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 418547000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 418547000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 418547000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 418547000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 418547000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2021-12-31",
              "val": 418547000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 411965000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 390100000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 377616000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 407551000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 407551000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 407551000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 407551000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 407551000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2022-12-31",
              "val": 407551000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 414222000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 414765000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 404295000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 419530000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 419530000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 419530000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 419530000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 419530000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 419530000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 458235000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 454493000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 471512000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 442630000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 442630000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2024-12-31",
              "val": 442630000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2024-12-31",
              "val": 442630000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2024-12-31",
              "val": 442630000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 457611000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 491072000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 491516000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 491833000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2025-12-31",
              "val": 491833000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 491833000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 503041000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 497301000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "GoodwillAcquiredDuringPeriod": {
        "label": "Goodwill, Acquired During Period",
        "description": "Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.",
        "units": {
          "USD": [
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 135290000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 135265000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 134905000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 134905000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 444000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 444000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 3509000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 3509000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 3558000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 3558000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 0,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2014"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 3247000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 3247000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 344238000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 340181000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 340181000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 340181000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 3646000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 3646000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 3646000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 8729000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 8729000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 8729000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 47673000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 47673000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 47576000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 47576000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 47576000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": 18592000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": 18588000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            }
          ]
        }
      },
      "GoodwillForeignCurrencyTranslationGainLoss": {
        "label": "Goodwill, Foreign Currency Translation Gain (Loss)",
        "description": "Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.",
        "units": {
          "USD": [
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": -30000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 323000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 323000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": -585000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": -585000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": -105000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": -105000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 23237000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 40712000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 40712000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": -17256000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": -12638000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": -21869000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": -29916000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": -29916000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": -6582000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": -28447000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": -49660000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": -19725000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": -19725000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 6671000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 7214000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": -3256000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 11979000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 11979000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": -8968000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": -12710000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 4406000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": -24476000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": -24476000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 14981000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 48442000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 48886000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 49203000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": -7384000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": -13120000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            }
          ]
        }
      },
      "GoodwillImpairmentLoss": {
        "label": "Goodwill, Impairment Loss",
        "description": "Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.",
        "units": {
          "USD": [
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 0,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 0,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": 0,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2011Q3"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 0,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 0,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 0,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 0,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": 0,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2012Q2"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 24665000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 24665000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 24665000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 24665000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2012Q3"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 36591000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 36591000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 36591000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 40693000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 40700000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 40700000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 40693000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 40693000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 40693000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 40693000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-04-01",
              "end": "2013-06-30",
              "val": 0,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-04-01",
              "end": "2013-06-30",
              "val": 0,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2013Q2"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 40693000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 40693000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 0,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 0,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2013Q3"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 40693000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 40693000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 40693000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 0,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 0,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-04-01",
              "end": "2014-06-30",
              "val": 0,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 0,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": 0,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 0,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 0,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 0,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 0,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 0,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 0,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 0,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 0,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018"
            },
            {
              "start": "2018-10-01",
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2018-10-01",
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-10-01",
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2018Q4"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 0,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 0,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019"
            },
            {
              "start": "2019-10-01",
              "end": "2019-12-31",
              "val": 0,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "start": "2019-10-01",
              "end": "2019-12-31",
              "val": 0,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-10-01",
              "end": "2019-12-31",
              "val": 0,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2019Q4"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 0,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 0,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 0,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 0,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 0,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 0,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 0,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 0,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 0,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 0,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 0,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            }
          ]
        }
      },
      "GoodwillPeriodIncreaseDecrease": {
        "label": "Goodwill, Period Increase (Decrease)",
        "description": "Amount of increase (decrease) of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.",
        "units": {
          "USD": [
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 444000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 444000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 444000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            }
          ]
        }
      },
      "GoodwillTranslationAdjustments": {
        "label": "Goodwill, Translation Adjustments (Deprecated 2016-01-31)",
        "description": "Amount of increase (decrease) from foreign currency translation adjustments of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.",
        "units": {
          "USD": [
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": -478000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": -478000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": -254000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": -254000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": -295000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": -295000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": -30000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2016"
            }
          ]
        }
      },
      "GoodwillTranslationAndPurchaseAccountingAdjustments": {
        "label": "Goodwill, Translation and Purchase Accounting Adjustments",
        "description": "Amount of increase (decrease) from foreign currency translation adjustments and purchase accounting adjustments of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.",
        "units": {
          "USD": [
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": -339000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": -307000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 7374000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            }
          ]
        }
      },
      "GrossProfit": {
        "label": "Gross Profit",
        "description": "Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.",
        "units": {
          "USD": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": 225126000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2009-01-01",
              "end": "2009-06-30",
              "val": 110685000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2009-04-01",
              "end": "2009-06-30",
              "val": 57978000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2009Q2"
            },
            {
              "start": "2009-01-01",
              "end": "2009-09-30",
              "val": 169686000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2009-07-01",
              "end": "2009-09-30",
              "val": 59001000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2009Q3"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 233492000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 233492000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-03-31",
              "val": 69710000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2010Q1"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 156728000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 156728000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2010-04-01",
              "end": "2010-06-30",
              "val": 87018000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-04-01",
              "end": "2010-06-30",
              "val": 87018000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2010Q2"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 231661000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 231661000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2010-07-01",
              "end": "2010-09-30",
              "val": 74933000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-07-01",
              "end": "2010-09-30",
              "val": 74933000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2010Q3"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 303417000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 303417000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 303417000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 82226000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 82226000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2011Q1"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 173363000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 173363000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2011-04-01",
              "end": "2011-06-30",
              "val": 91137000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-04-01",
              "end": "2011-06-30",
              "val": 91137000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2011Q2"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 265733000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 265733000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": 92370000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": 92370000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2011Q3"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 361283000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 361283000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 361283000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 100760000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 100760000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 209560000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 209560000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": 108800000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": 108800000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2012Q2"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 309910000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 309910000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 100350000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 100350000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2012Q3"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 416388000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 416388000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 416388000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 112849000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 112849000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 236540000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 236540000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-04-01",
              "end": "2013-06-30",
              "val": 123691000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-04-01",
              "end": "2013-06-30",
              "val": 123691000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2013Q2"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 361630000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 361630000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 125090000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 125090000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2013Q3"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 498106000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 498106000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 498106000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 137251000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 137251000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 282727000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 282727000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2014-04-01",
              "end": "2014-06-30",
              "val": 145476000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-04-01",
              "end": "2014-06-30",
              "val": 145476000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2014Q2"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 427781000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 427781000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": 145054000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": 145054000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2014Q3"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 578443000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 578443000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 578443000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 151090000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 151090000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 309724000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 309724000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2015-04-01",
              "end": "2015-06-30",
              "val": 158634000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-04-01",
              "end": "2015-06-30",
              "val": 158634000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2015Q2"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 467300000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 467300000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2015-07-01",
              "end": "2015-09-30",
              "val": 157576000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-07-01",
              "end": "2015-09-30",
              "val": 157576000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2015Q3"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 640110000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 640110000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 640110000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 180627000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 180627000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 385843000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 385843000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-04-01",
              "end": "2016-06-30",
              "val": 205216000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-04-01",
              "end": "2016-06-30",
              "val": 205216000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2016Q2"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 595045000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 595045000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": 209202000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": 209202000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2016Q3"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 815294000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 815294000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 815294000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 235625000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 235625000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 506542000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 506542000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-04-01",
              "end": "2017-06-30",
              "val": 270917000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-04-01",
              "end": "2017-06-30",
              "val": 270917000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2017Q2"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 799030000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 799030000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": 292488000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": 292488000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2017Q3"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 1116947000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 1116947000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 1116947000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 327408000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 327408000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 692990000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 692990000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": 365582000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": 365582000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2018Q2"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 1064771000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 1064771000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 371781000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 371781000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2018Q3"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 1447867000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 1447867000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 1447867000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 402096000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 402096000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 834385000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 834385000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 432289000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 432289000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2019Q2"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 1271939000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 1271939000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 437554000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 437554000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2019Q3"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 1743897000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 1743897000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 1743897000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 394356000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 394356000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 618684000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 618684000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": 224328000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": 224328000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2020Q2"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 1152772000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 1152772000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 534088000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 534088000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2020Q3"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 1763235000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 1763235000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 1763235000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 677098000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 677098000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 1435636000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 1435636000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 758538000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 758538000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2021Q2"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 2190792000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 2190792000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 755156000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 755156000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2021Q3"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 2935355000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 2935355000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 2935355000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 709346000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 709346000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 1396905000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 1396905000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": 687559000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": 687559000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2022Q2"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 2016074000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 2016074000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": 619169000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": 619169000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2022Q3"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 2633775000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 2633775000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 2633775000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 660654000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 660654000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 1374263000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 1374263000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 713609000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 713609000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2023Q2"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 2037339000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 2037339000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 663076000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 663076000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2023Q3"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 2706863000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 2706863000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 2706863000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 697816000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 697816000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 1420444000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 1420444000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 722628000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 722628000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2024Q2"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 2102218000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 2102218000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 681774000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 681774000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2024Q3"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 2799159000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 2799159000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 680108000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 680108000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 1388225000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 1388225000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 708117000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 708117000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q2"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 2027426000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-07-01",
              "end": "2025-09-30",
              "val": 639201000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 2711013000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": 736587000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": 1494017000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2026-04-01",
              "end": "2026-06-30",
              "val": 757430000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2"
            }
          ]
        }
      },
      "ImpairmentOfIntangibleAssetsFinitelived": {
        "label": "Impairment of Intangible Assets, Finite-lived",
        "description": "The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value.",
        "units": {
          "USD": [
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 0,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 0,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            }
          ]
        }
      },
      "ImpairmentOfLongLivedAssetsHeldForUse": {
        "label": "Impairment of Long-Lived Assets Held-for-use",
        "description": "The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale).",
        "units": {
          "USD": [
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 0,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 0,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 0,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 26320000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 26320000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 26320000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 0,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 0,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 0,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 0,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 0,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 0,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 0,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 28498000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 28498000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 28498000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 28498000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 28498000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 28498000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 28498000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 28498000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 28498000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 0,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 0,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 0,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 0,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 0,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 0,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2021"
            }
          ]
        }
      },
      "ImpairmentOfLongLivedAssetsToBeDisposedOf": {
        "label": "Impairment of Long-Lived Assets to be Disposed of",
        "description": "The aggregate amount of write-downs for impairments recognized during the period for long-lived assets held for abandonment, exchange or sale.",
        "units": {
          "USD": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": 1712000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 0,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 0,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 0,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 0,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 0,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 23142000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 23142000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": -11699000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": -11699000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            }
          ]
        }
      },
      "IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic": {
        "label": "Income (Loss) from Continuing Operations before Income Taxes, Domestic",
        "description": "The portion of earnings or loss from continuing operations before income taxes that is attributable to domestic operations.",
        "units": {
          "USD": [
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": -23075000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 57145000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 57145000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 52184000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 52184000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 52184000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 32341000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 32341000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 32341000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 31993000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 31993000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 31993000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 94784000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 94784000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 94784000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 87803000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 87803000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 87803000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 118871000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 118871000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 118871000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 123696000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 123696000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 123696000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 171658000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 171658000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 171658000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 184956000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 184956000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 184956000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 173099000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 173099000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 173099000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 378478000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 378478000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 378478000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 268097000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 268097000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 268097000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 315643000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 315643000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 315643000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 334485000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 334485000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 280926000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            }
          ]
        }
      },
      "IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest": {
        "label": "Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest",
        "description": "Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.",
        "units": {
          "USD": [
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 562651000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 164407000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 184545000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2020Q3"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 378949000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 378949000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 261621000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 530423000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 268802000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2021Q2"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 792411000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 792411000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 261988000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 261988000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2021Q3"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 1012423000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 1012423000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 1012423000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 187486000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 187486000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 361095000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 361095000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": 173609000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": 173609000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2022Q2"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 483736000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 483736000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": 122641000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": 122641000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2022Q3"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 599057000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 599057000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 599057000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 134624000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 134624000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 306213000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 306213000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 171589000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 171589000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2023Q2"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 468324000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 468324000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 162111000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 162111000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2023Q3"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 641204000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 641204000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 641204000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 158386000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 158386000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 302252000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 302252000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 143866000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 143866000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2024Q2"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 468182000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 468182000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 165930000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 165930000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2024Q3"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 608959000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 608959000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 140442000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 140442000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 313958000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 313958000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 173516000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 173516000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q2"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 408692000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-07-01",
              "end": "2025-09-30",
              "val": 94734000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 585287000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": 148886000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": 297579000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2026-04-01",
              "end": "2026-06-30",
              "val": 148693000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2"
            }
          ]
        }
      },
      "IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign": {
        "label": "Income (Loss) from Continuing Operations before Income Taxes, Foreign",
        "description": "The portion of earnings or loss from continuing operations before income taxes that is attributable to foreign operations, which is defined as Income or Loss generated from operations located outside the entity's country of domicile.",
        "units": {
          "USD": [
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": -10818000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 44858000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 44858000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 37757000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 37757000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 37757000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 51955000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 51955000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 51955000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 61146000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 61146000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 61146000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 95585000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 95585000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 95585000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 98298000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 98298000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 98298000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 123695000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 123695000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 123695000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 241103000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 241103000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 241103000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 294993000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 294993000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 294993000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 377695000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 377695000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 377695000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 205850000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 205850000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 205850000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 633945000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 633945000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 633945000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 330960000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 330960000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 330960000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 325561000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 325561000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 325561000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 274474000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 274474000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 304361000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            }
          ]
        }
      },
      "IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments": {
        "label": "Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest",
        "description": "Amount of income (loss) from continuing operations before deduction of income tax expense (benefit) and income (loss) attributable to noncontrolling interest, and addition of income (loss) from equity method investments.",
        "units": {
          "USD": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": 17076000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2009-01-01",
              "end": "2009-06-30",
              "val": 12242000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2009-04-01",
              "end": "2009-06-30",
              "val": 6810000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2009Q2"
            },
            {
              "start": "2009-01-01",
              "end": "2009-09-30",
              "val": -48223000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2009-07-01",
              "end": "2009-09-30",
              "val": -60465000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2009Q3"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": -33893000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": -33893000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-03-31",
              "val": 20144000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2010Q1"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 65644000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 65644000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2010-04-01",
              "end": "2010-06-30",
              "val": 45500000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-04-01",
              "end": "2010-06-30",
              "val": 45500000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2010Q2"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 87484000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 87484000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2010-07-01",
              "end": "2010-09-30",
              "val": 21840000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-07-01",
              "end": "2010-09-30",
              "val": 21840000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2010Q3"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 102003000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 102003000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 102003000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 21112000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 21112000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2011Q1"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 37401000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 37401000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2011-04-01",
              "end": "2011-06-30",
              "val": 16289000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-04-01",
              "end": "2011-06-30",
              "val": 16289000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2011Q2"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 63595000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 63595000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": 26194000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": 26194000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2011Q3"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 89941000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 89941000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 89941000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 27194000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 27194000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 63747000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 63747000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": 36553000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": 36553000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2012Q2"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 67897000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 67897000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 4150000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 4150000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2012Q3"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 84296000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 84296000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 84296000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": -39063000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": -39063000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": -1497000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": -1497000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-04-01",
              "end": "2013-06-30",
              "val": 37566000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-04-01",
              "end": "2013-06-30",
              "val": 37566000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2013Q2"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 40416000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 40416000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 41913000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 41913000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2013Q3"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 93139000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 93139000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 93139000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 42405000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 42405000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 91044000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 91044000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2014-04-01",
              "end": "2014-06-30",
              "val": 48639000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-04-01",
              "end": "2014-06-30",
              "val": 48639000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2014Q2"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 140592000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 140592000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": 49548000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": 49548000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2014Q3"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 190369000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 190369000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 190369000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 47472000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 47472000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 89971000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 89971000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2015-04-01",
              "end": "2015-06-30",
              "val": 42499000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-04-01",
              "end": "2015-06-30",
              "val": 42499000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2015Q2"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 126449000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 126449000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2015-07-01",
              "end": "2015-09-30",
              "val": 36478000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-07-01",
              "end": "2015-09-30",
              "val": 36478000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2015Q3"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 186101000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 186101000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 186101000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 52907000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 52907000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 118168000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 118168000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-04-01",
              "end": "2016-06-30",
              "val": 65261000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-04-01",
              "end": "2016-06-30",
              "val": 65261000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2016Q2"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 181710000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 181710000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": 63542000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": 63542000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2016Q3"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 242566000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 242566000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 242566000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 63318000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 63318000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 150099000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 150099000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-04-01",
              "end": "2017-06-30",
              "val": 86781000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-04-01",
              "end": "2017-06-30",
              "val": 86781000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2017Q2"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 252612000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 252612000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": 102513000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": 102513000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2017Q3"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 364799000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 364799000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 364799000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 100545000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 100545000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 218054000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 218054000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": 117509000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": 117509000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2018Q2"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 344659000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 344659000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 126605000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 126605000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2018Q3"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 466651000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 466651000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 466651000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 84588000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 84588000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 278435000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 278435000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 193847000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 193847000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2019Q2"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 406854000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 406854000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 128419000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 128419000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2019Q3"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 562651000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 562651000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 562651000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 53355000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 53355000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": -20138000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": -20138000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": -73493000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": -73493000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2020Q2"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 164407000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 184545000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 378949000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 378949000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 261621000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 530423000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 268802000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 1012423000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2021"
            }
          ]
        }
      },
      "IncomeLossFromEquityMethodInvestments": {
        "label": "Income (Loss) from Equity Method Investments",
        "description": "Amount of income (loss) for proportionate share of equity method investee's income (loss).",
        "units": {
          "USD": [
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 0,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 0,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2015-07-01",
              "end": "2015-09-30",
              "val": 0,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2015Q3"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 0,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 0,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 0,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 0,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-04-01",
              "end": "2016-06-30",
              "val": 0,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2016Q2"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": -477000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": -477000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": -477000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": -477000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2016Q3"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": -1684000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": -1684000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": -1684000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": -1121000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": -1121000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": -3336000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": -3336000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-04-01",
              "end": "2017-06-30",
              "val": -2215000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-04-01",
              "end": "2017-06-30",
              "val": -2215000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2017Q2"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": -4950000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": -4950000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": -1614000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": -1614000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2017Q3"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": -3219000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": -3219000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": -3219000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": -1777000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": -1777000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": -5478000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": -5478000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": -3701000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": -3701000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2018Q2"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": -6610000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": -6610000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": -1132000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": -1132000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2018Q3"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": -8693000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": -8693000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": -8693000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": -3944000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": -3944000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": -7528000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": -7528000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": -3584000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": -3584000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2019Q2"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": -7528000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": -7528000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 0,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 0,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2019Q3"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": -7528000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": -7528000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": -7528000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 0,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 0,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": 0,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 0,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 0,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 0,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 0,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 0,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2021"
            }
          ]
        }
      },
      "IncomeTaxExaminationPenaltiesAndInterestExpense": {
        "label": "Income Tax Examination, Penalties and Interest Expense",
        "description": "The sum of the amounts of estimated penalties and interest recognized in the period arising from income tax examinations.",
        "units": {
          "USD": [
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 1000000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 1400000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 1400000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 800000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 800000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 1500000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2018"
            }
          ]
        }
      },
      "IncomeTaxExpenseBenefit": {
        "label": "Income Tax Expense (Benefit)",
        "description": "Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.",
        "units": {
          "USD": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": -62911000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2009-01-01",
              "end": "2009-06-30",
              "val": 5061000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2009-04-01",
              "end": "2009-06-30",
              "val": 2265000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2009Q2"
            },
            {
              "start": "2009-01-01",
              "end": "2009-09-30",
              "val": -5462000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2009-07-01",
              "end": "2009-09-30",
              "val": -10523000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2009Q3"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": -2624000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": -2624000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-03-31",
              "val": 5214000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2010Q1"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 18111000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 18111000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2010-04-01",
              "end": "2010-06-30",
              "val": 12897000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-04-01",
              "end": "2010-06-30",
              "val": 12897000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2010Q2"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 23136000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 23136000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2010-07-01",
              "end": "2010-09-30",
              "val": 5025000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-07-01",
              "end": "2010-09-30",
              "val": 5025000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2010Q3"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 27750000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 27750000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 27750000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 5271000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 5271000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2011Q1"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 10398000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 10398000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2011-04-01",
              "end": "2011-06-30",
              "val": 5127000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-04-01",
              "end": "2011-06-30",
              "val": 5127000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2011Q2"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 17328000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 17328000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": 6930000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": 6930000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2011Q3"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 23225000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 23225000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 23225000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 6210000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 6210000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 14271000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 14271000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": 8061000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": 8061000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2012Q2"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 18765000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 18765000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 4494000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 4494000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2012Q3"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 25605000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 25605000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 25605000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 2920000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 2920000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 11166000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 11166000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-04-01",
              "end": "2013-06-30",
              "val": 8246000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-04-01",
              "end": "2013-06-30",
              "val": 8246000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2013Q2"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 18542000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 18542000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 7376000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 7376000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2013Q3"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 28844000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 28844000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 28844000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 9961000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 9961000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 23000000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 23000000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2014-04-01",
              "end": "2014-06-30",
              "val": 13039000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-04-01",
              "end": "2014-06-30",
              "val": 13039000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2014Q2"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 34301000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 34301000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": 11301000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": 11301000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2014Q3"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 44537000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 44537000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 44537000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 11295000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 11295000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 22444000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 22444000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2015-04-01",
              "end": "2015-06-30",
              "val": 11149000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-04-01",
              "end": "2015-06-30",
              "val": 11149000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2015Q2"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 31306000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 31306000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2015-07-01",
              "end": "2015-09-30",
              "val": 8862000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-07-01",
              "end": "2015-09-30",
              "val": 8862000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2015Q3"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 42081000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 42081000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 42081000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 12361000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 12361000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 27474000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 27474000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-04-01",
              "end": "2016-06-30",
              "val": 15113000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-04-01",
              "end": "2016-06-30",
              "val": 15113000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2016Q2"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 39172000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 39172000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": 11698000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": 11698000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2016Q3"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 51200000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 51200000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 51200000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": -7223000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": -7223000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 8164000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 8164000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-04-01",
              "end": "2017-06-30",
              "val": 15387000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-04-01",
              "end": "2017-06-30",
              "val": 15387000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2017Q2"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 26508000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 26508000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": 18344000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": 18344000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2017Q3"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 130162000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 130162000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 130162000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 2902000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 2902000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 10605000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 10605000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": 7703000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": 7703000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2018Q2"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 35206000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 35206000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 24601000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 24601000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2018Q3"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 57723000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 57723000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 57723000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 8796000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 8796000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 51917000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 51917000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 43121000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 43121000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2019Q2"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 77812000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 77812000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 25895000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 25895000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2019Q3"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 112347000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 112347000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 112347000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": -1464776000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": -1464776000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": -1497667000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": -1497667000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": -32891000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": -32891000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2020Q2"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": -1452493000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": -1452493000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 45174000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 45174000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2020Q3"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": -1396939000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": -1396939000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": -1396939000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 61245000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 61245000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 130333000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 130333000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 69088000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 69088000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2021Q2"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 211352000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 211352000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 81019000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 81019000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2021Q3"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 240403000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 240403000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 240403000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 53188000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 53188000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 113997000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 113997000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": 60809000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": 60809000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2022Q2"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 163938000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 163938000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": 49941000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": 49941000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2022Q3"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 237484000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 237484000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 237484000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 46826000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 46826000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 106601000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 106601000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 59775000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 59775000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2023Q2"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 147285000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 147285000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 40684000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 40684000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2023Q3"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 196151000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 196151000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 196151000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 53358000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 53358000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 100660000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 100660000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 47302000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 47302000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2024Q2"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 150627000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 150627000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 49967000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 49967000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2024Q3"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 187597000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 187597000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 47212000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 47212000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 96120000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 96120000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 48908000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 48908000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q2"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 134101000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-07-01",
              "end": "2025-09-30",
              "val": 37981000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 174936000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": 36115000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": 76514000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2026-04-01",
              "end": "2026-06-30",
              "val": 40399000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2"
            }
          ]
        }
      },
      "IncomeTaxesPaid": {
        "label": "Income Taxes Paid",
        "description": "The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income.",
        "units": {
          "USD": [
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 2004000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 1894000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 1894000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 1953000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 1953000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 1953000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 2825000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 2825000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 2825000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 4125000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 4125000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 4125000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 5666000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 5666000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 5666000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 40621000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 40621000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 40621000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 47289000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 47289000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 47289000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 51231000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 51231000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 51231000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 114601000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 114601000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 114601000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 71746000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 71746000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 71746000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 76332000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 76332000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 76332000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 203309000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 203309000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 203309000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 231884000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 231884000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 231884000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 294569000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 294569000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 294569000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 177082000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 177082000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 134753000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            }
          ]
        }
      },
      "IncomeTaxReconciliationForeignIncomeTaxRateDifferential": {
        "label": "Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount",
        "description": "Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to foreign income tax expense (benefit).",
        "units": {
          "USD": [
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 34300000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 34300000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 34300000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017"
            }
          ]
        }
      },
      "IncomeTaxReconciliationPriorYearIncomeTaxes": {
        "label": "Effective Income Tax Rate Reconciliation, Prior Year Income Taxes, Amount",
        "description": "Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to revisions of previously reported income tax expense (benefit).",
        "units": {
          "USD": [
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 1300000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 1800000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-04-01",
              "end": "2014-06-30",
              "val": 2100000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 1800000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 1800000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2014"
            }
          ]
        }
      },
      "IncomeTaxReconciliationTaxCreditsResearch": {
        "label": "Effective Income Tax Rate Reconciliation, Tax Credit, Research, Amount",
        "description": "Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to research tax credit.",
        "units": {
          "USD": [
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 500000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 500000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 7840000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            }
          ]
        }
      },
      "IncomeTaxReconciliationTaxHolidays": {
        "label": "Effective Income Tax Rate Reconciliation, Tax Holiday, Amount",
        "description": "Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to income exempt from income tax because of a tax holiday.",
        "units": {
          "USD": [
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 22800000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": 7700000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2014Q3"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 8200000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-04-01",
              "end": "2015-06-30",
              "val": 8200000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2015Q2"
            },
            {
              "start": "2015-07-01",
              "end": "2015-09-30",
              "val": 8200000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2015Q3"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 8600000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 17200000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-04-01",
              "end": "2016-06-30",
              "val": 8600000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2016Q2"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 17500000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": 300000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2016Q3"
            }
          ]
        }
      },
      "IncreaseDecreaseInAccountsPayable": {
        "label": "Increase (Decrease) in Accounts Payable",
        "description": "The increase (decrease) during the reporting period in the aggregate amount of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business.",
        "units": {
          "USD": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": -2651000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2009-01-01",
              "end": "2009-06-30",
              "val": 1240000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2009-01-01",
              "end": "2009-09-30",
              "val": 816000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": -614000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": -614000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-03-31",
              "val": -271000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2010Q1"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": -9000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": -9000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 13000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 13000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 2612000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 2612000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 2612000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": -634000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": -634000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2011Q1"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": -165000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": -165000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 3748000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 3748000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 7535000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 7535000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 7535000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": -3641000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": -3641000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": -1954000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": -1954000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": -3888000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": -3888000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": -6000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": -6000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": -6000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 1611000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 1611000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 50000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 50000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": -318000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": -318000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": -186000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": -186000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": -186000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 265000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 265000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": -9000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": -9000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 3788000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 3788000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 2887000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 2887000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 2887000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 1871000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 1871000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 4902000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 4902000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 4408000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 4408000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 7575000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 7575000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 7575000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 447000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 447000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": -4753000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": -4753000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": -4134000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": -4134000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": -3395000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": -3395000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": -3395000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 5522000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 5522000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 4410000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 4410000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 4220000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 4220000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 8175000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 8175000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 8175000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 5599000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 5599000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 10743000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 10743000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 5042000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 5042000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 25045000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 25045000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 25045000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 1470000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 1470000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 1847000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 1847000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 1343000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 1343000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 22099000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 22099000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 22099000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": -12034000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": -12034000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 11918000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 11918000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 21837000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 21837000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 52206000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 52206000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 52206000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": -14936000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": -14936000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": -5736000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": -5736000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 13495000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 13495000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 19747000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 19747000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 19747000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 7025000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 7025000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": -23944000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": -23944000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": -27100000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": -27100000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": -36523000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": -36523000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": -36523000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 5993000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 5993000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": -10351000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": -10351000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": -23130000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": -23130000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": -7703000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": -7703000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": -7703000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 4100000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 4100000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": -6398000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": -6398000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": -13283000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": -13283000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": -843000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": -843000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 8575000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 8575000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": -7516000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": -7516000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 6729000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 5330000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": 4929000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": -10290000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            }
          ]
        }
      },
      "IncreaseDecreaseInAccountsReceivable": {
        "label": "Increase (Decrease) in Accounts Receivable",
        "description": "The increase (decrease) during the reporting period in amount due within one year (or one business cycle) from customers for the credit sale of goods and services.",
        "units": {
          "USD": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": 7951000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2009-01-01",
              "end": "2009-06-30",
              "val": 1370000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2009-01-01",
              "end": "2009-09-30",
              "val": 3167000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 2586000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 2586000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-03-31",
              "val": 4857000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2010Q1"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 10126000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 10126000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 9962000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 9962000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 12184000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 12184000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 12184000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 7317000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 7317000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2011Q1"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 10789000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 10789000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 16086000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 16086000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 21693000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 21693000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 24147000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 2398000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 2398000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 11813000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 11813000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 15460000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 17352000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 9138000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 11666000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 11666000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 9240000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 10002000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 7567000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 9050000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 5936000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 5936000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 11981000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 11981000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 11981000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 13939000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 13939000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 21407000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 21407000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 24930000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 24930000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 27229000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 27229000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 27229000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 12233000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 12233000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 22904000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 22904000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 27123000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 27123000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 40775000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 40775000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 40775000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 20839000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 20839000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 38433000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 38433000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 93122000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 93122000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 94444000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 94444000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 95808000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 24525000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 24525000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 52038000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 52038000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 84437000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 84437000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 90990000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 90990000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 90990000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 36026000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 36026000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 44266000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 44266000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 89843000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 89843000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 109224000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 109224000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 109224000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 42743000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 42743000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 89055000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 89055000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 95566000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 95566000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 121014000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 121014000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 121014000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": -13761000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": -13761000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": -64645000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": -64645000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 101888000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 101888000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 139777000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 139777000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 139777000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 67423000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 67423000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 164822000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 164822000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 216081000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 216081000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 262066000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 262066000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 262066000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 55543000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 55543000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 53462000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 53462000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": -32284000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": -32284000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": -21549000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": -21549000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": -21549000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 32734000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 32734000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 73680000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 73680000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 80297000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 80297000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 104614000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 104614000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 104614000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 69589000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 69589000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 146932000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 146932000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 135239000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 135239000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 153487000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 153487000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 65302000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 65302000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 121406000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 121406000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 117709000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 139909000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": 40989000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": 72020000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            }
          ]
        }
      },
      "IncreaseDecreaseInAccruedIncomeTaxesPayable": {
        "label": "Increase (Decrease) in Income Taxes Payable",
        "description": "The increase (decrease) during the period in the amount due for taxes based on the reporting entity's earnings or attributable to the entity's income earning process (business presence) within a given jurisdiction.",
        "units": {
          "USD": [
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 6930000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 7622000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 7622000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 1189000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": -551000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 243000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 68958000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 68958000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 68958000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 5259000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 5259000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 1610000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 1610000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": -18435000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": -18435000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": -36548000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": -36548000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": -36548000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 4808000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 4808000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 9608000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 9608000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 13425000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 13425000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 14611000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 14611000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 14611000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 6354000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 6354000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 6707000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 6707000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 119000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 119000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": -2802000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": -2802000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": -2802000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 3920000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 3920000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 7535000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 7535000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 20263000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 20263000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 12449000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 12449000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 12449000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 5405000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 5405000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": -1657000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": -1657000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 9019000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 9019000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 6327000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 6327000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 6327000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 2119000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 2119000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": -11113000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": -11113000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": -7979000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": -7979000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": -7772000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": -7772000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": -7772000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 4570000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 4570000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": -12961000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": -12961000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": -5186000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": -5186000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": -20279000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": -20279000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 3316000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 3316000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 7092000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 7092000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 14130000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": -28265000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": -913000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": 2187000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            }
          ]
        }
      },
      "IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities": {
        "label": "Increase (Decrease) in Accrued Liabilities and Other Operating Liabilities",
        "description": "Amount of increase (decrease) in accrued expenses, and obligations classified as other.",
        "units": {
          "USD": [
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 3336000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": -730000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 6260000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 19705000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 19705000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": -5315000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2011Q1"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 1770000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 1770000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 5504000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 5504000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 37105000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 37105000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 37105000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": -9191000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": -9191000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": -3927000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": -3927000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": -669000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": -669000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 2943000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 2943000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 2943000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": -7941000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": -7941000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 3298000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 3298000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": -671000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": -671000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 9662000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 9662000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 9662000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": -15286000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": -15286000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 1343000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 1343000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 12402000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 12402000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 22692000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 22692000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 22692000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": -1078000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": -1078000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 8259000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 8259000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 6712000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 6712000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 19462000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 19462000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 12532000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": -14544000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": -14544000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 4446000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 4446000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 38969000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 38969000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 37629000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 30007000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 31371000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": -39702000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": -40891000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": -15353000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": -14802000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 18995000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 18752000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 24235000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 24235000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 24235000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": -35466000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": -35466000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": -53442000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": -53442000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": -25436000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": -25436000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 36250000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 36250000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 36250000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": -5183000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": -5183000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 1321000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 1321000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 31089000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 31089000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 60240000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 60240000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 60240000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": -69103000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": -69103000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": -106572000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": -106572000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": -28343000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": -28343000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 42168000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 42168000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 42168000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": -475000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": -475000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 65650000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 65650000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 107159000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 107159000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 158543000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 158543000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 158543000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": -126400000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": -126400000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": -212896000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": -212896000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": -213378000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": -213378000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": -121942000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": -121942000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": -121942000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 37420000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 37420000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 140284000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 140284000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 156024000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 156024000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 46327000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 46327000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 46327000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": -34473000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": -34473000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 44779000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 44779000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 47618000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 47618000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 89705000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 89705000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": -67877000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": -67877000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": -35503000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": -35503000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": -67730000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": -95654000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": 5376000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": 60570000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            }
          ]
        }
      },
      "IncreaseDecreaseInDeferredRevenue": {
        "label": "Increase (Decrease) in Deferred Revenue",
        "description": "Amount of increase (decrease) in deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable.",
        "units": {
          "USD": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": 4559000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2009-01-01",
              "end": "2009-06-30",
              "val": 6420000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2009-01-01",
              "end": "2009-09-30",
              "val": 11051000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 15527000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 15527000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-03-31",
              "val": 5108000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2010Q1"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": -4391000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": -4391000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": -1666000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": -1666000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 2180000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 2180000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 2180000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 2999000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 2999000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2011Q1"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 5775000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 5775000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 10836000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 10836000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 16334000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 16334000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 16334000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 1809000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 1809000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 7004000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 7004000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 12674000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 12674000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 12389000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 12389000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 12389000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": -1476000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": -1476000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 2099000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 2099000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 8415000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 8415000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 14901000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 14901000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 14901000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 3083000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 3083000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 6705000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 6705000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 9957000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 9957000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 15767000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 15767000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 15767000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 6019000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 6019000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 12733000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 12733000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 28182000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 28182000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 41854000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 41854000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 41854000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 14748000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 14748000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 29787000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 29787000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 46482000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 46482000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 60656000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 60656000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 60656000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 11688000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 11688000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 29580000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 29580000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 53198000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 53198000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 79662000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 79662000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 79662000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 28391000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 28391000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 54983000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 54983000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 94059000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 94059000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 136399000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 136399000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 136399000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 42494000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 42494000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 95174000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 95174000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 138072000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 138072000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 189075000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 189075000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 189075000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 22892000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 22892000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 40892000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 40892000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 128585000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 128585000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 228133000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 228133000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 228133000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 106007000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 106007000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 231408000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 231408000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 348430000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 348430000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 462640000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 462640000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 462640000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 68984000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 68984000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 136021000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 136021000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 197854000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 197854000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 241886000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 241886000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 241886000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 27662000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 27662000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 56718000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 56718000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 82894000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 82894000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 86714000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 86714000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 86714000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": -14419000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": -14419000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": -27932000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": -27932000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": -60207000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": -60207000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": -80109000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": -80109000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": -34927000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": -34927000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": -64742000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": -64742000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": -88661000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": -111756000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": -31053000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": -64498000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            }
          ]
        }
      },
      "IncreaseDecreaseInInsuranceSettlementsReceivable": {
        "label": "Increase (Decrease) in Insurance Settlements Receivable",
        "description": "The increase (decrease) during the reporting period in insurance settlements receivable, which are amounts due in settlement of a claim for reimbursement from an insurance company when the Company has suffered a loss covered under an insurance policy. The expectation is that such reimbursement will be received within one year of the balance sheet date.",
        "units": {
          "USD": [
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 8666000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 8666000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 8666000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 8666000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            }
          ]
        }
      },
      "IncreaseDecreaseInInventories": {
        "label": "Increase (Decrease) in Inventories",
        "description": "The increase (decrease) during the reporting period in the aggregate value of all inventory held by the reporting entity, associated with underlying transactions that are classified as operating activities.",
        "units": {
          "USD": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": -943000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2009-01-01",
              "end": "2009-06-30",
              "val": 150000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2009-01-01",
              "end": "2009-09-30",
              "val": -74000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 85000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 85000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-03-31",
              "val": 319000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2010Q1"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 462000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 462000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 343000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 343000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 508000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 508000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 508000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 312000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 312000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2011Q1"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 960000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 960000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 2975000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 2975000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 4058000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 4058000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 4058000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 4030000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 4030000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 5221000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 5221000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 5735000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 5735000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 5718000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 5718000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 5718000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 320000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 320000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 581000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 581000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": -467000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": -467000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": -1158000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": -1158000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": -1158000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 1870000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 1870000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": -855000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": -855000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 2033000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 2033000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 1999000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 1999000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 1999000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": -1334000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": -1334000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 510000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 510000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 3033000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 3033000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 3563000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 3563000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 3563000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 3155000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 3155000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 3524000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 3524000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 6873000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 6873000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 7663000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 7663000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 7663000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 7923000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 7923000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 8616000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 8616000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 10709000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 10709000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 5481000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 5481000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 5481000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 4002000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 4002000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 15586000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 15586000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 17192000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 17192000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 24109000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 24109000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 24109000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 13280000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 13280000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 26681000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 26681000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 40775000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 40775000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 58269000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 58269000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 58269000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 10496000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 10496000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 21398000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 21398000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 11774000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 11774000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 29110000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 29110000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 29110000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 15582000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 15582000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 49070000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 49070000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 83249000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 83249000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 112450000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 112450000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 112450000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 49455000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 49455000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 91060000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 91060000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 108524000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 108524000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 130097000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 130097000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 130097000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": -24008000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": -24008000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": -19064000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": -19064000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": -31639000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": -31639000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": -30169000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": -30169000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": -30169000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": -15573000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": -15573000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": -31396000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": -31396000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": -32304000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": -32304000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": -25053000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": -25053000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": -7396000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": -7396000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": -9044000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": -9044000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": -3055000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": -808000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": -9349000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": -6088000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            }
          ]
        }
      },
      "IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets": {
        "label": "Increase (Decrease) in Prepaid Expense and Other Assets",
        "description": "Amount of increase (decrease) in prepaid expenses, and assets classified as other.",
        "units": {
          "USD": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": -276000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2009-01-01",
              "end": "2009-06-30",
              "val": 1843000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2009-01-01",
              "end": "2009-09-30",
              "val": 7036000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": -306000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": -306000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-03-31",
              "val": 738000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2010Q1"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 3705000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 3705000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 3086000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 3086000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 1212000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 1212000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 1212000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": -207000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": -207000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2011Q1"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 1036000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 1036000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": -522000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": -522000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 2681000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 2681000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 2681000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 1530000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 1530000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 1970000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 1970000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 1620000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 1620000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 3853000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 3853000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 3853000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 586000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 586000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 234000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 234000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": -256000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": -256000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 392000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 392000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 392000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 1790000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 1790000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 2806000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 2806000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 2349000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 2349000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 2924000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 2924000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 2924000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 10527000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 10527000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 4786000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 4786000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 2529000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 2529000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 3726000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 3726000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 3726000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 618000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 618000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 5025000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 5025000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 5069000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 5069000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 9390000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 9390000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 9390000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 527000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 527000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": -388000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": -388000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 5848000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 5848000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 8669000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 8669000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 8669000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 15873000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 15873000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 9366000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 9366000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 47775000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 47775000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 9122000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 9122000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 9122000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 35033000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 35033000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 48949000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 48949000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 14826000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 14826000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 31529000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 31529000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 31529000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 37244000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 37244000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 31058000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 31058000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 28251000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 28251000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 21130000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 21130000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 21130000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 34858000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 34858000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 70132000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 70132000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 74736000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 74736000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 124626000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 124626000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 124626000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 48665000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 48665000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 14219000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 14219000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 32440000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 32440000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 65514000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 65514000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 65514000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 26850000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 26850000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 16799000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 16799000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": -1773000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": -1773000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 51013000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 51013000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 51013000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 79160000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 79160000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 80904000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 80904000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 26283000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 26283000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": -67527000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": -67527000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 21970000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 21970000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 22701000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 22701000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 4053000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": -13431000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": 44492000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": 25963000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            }
          ]
        }
      },
      "IncreaseDecreaseInRestrictedCash": {
        "label": "Increase (Decrease) in Restricted Cash",
        "description": "The net cash inflow or outflow for the increase (decrease) associated with funds that are not available for withdrawal or use (such as funds held in escrow) and are associated with underlying transactions that are classified as investing activities.",
        "units": {
          "USD": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": -21000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 0,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 7991000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2011Q1"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 7991000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 0,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 0,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 4026000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 4026000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": -3000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": -3000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": -2848000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": -2848000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": -2462000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": -2471000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": -1053000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": -1053000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            }
          ]
        }
      },
      "InsuranceRecoveries": {
        "label": "Insurance Recoveries",
        "description": "The amount recovered from insurance. These recoveries reduce costs and losses that are reported as a separate line item under operating expenses.",
        "units": {
          "USD": [
            {
              "start": "2010-06-01",
              "end": "2010-06-30",
              "val": 8700000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 8666000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 8666000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 0,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 0,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2012"
            }
          ]
        }
      },
      "IntangibleAssetsNetExcludingGoodwill": {
        "label": "Intangible Assets, Net (Excluding Goodwill)",
        "description": "Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.",
        "units": {
          "USD": [
            {
              "end": "2009-12-31",
              "val": 4988000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "end": "2009-12-31",
              "val": 4988000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "end": "2009-12-31",
              "val": 4988000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2009Q4I"
            },
            {
              "end": "2010-06-30",
              "val": 3588000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2010Q2I"
            },
            {
              "end": "2010-09-30",
              "val": 2888000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2010Q3I"
            },
            {
              "end": "2010-12-31",
              "val": 2188000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "end": "2010-12-31",
              "val": 2188000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "end": "2010-12-31",
              "val": 2188000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2010-12-31",
              "val": 2188000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2010-12-31",
              "val": 2188000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-03-31",
              "val": 1488000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2011Q1I"
            },
            {
              "end": "2011-06-30",
              "val": 52113000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 50279000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 50022000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 50022000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2011-12-31",
              "val": 50022000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "end": "2011-12-31",
              "val": 50022000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "end": "2011-12-31",
              "val": 50022000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 48876000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 47901000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 46817000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 45777000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 45777000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "end": "2012-12-31",
              "val": 45777000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "end": "2012-12-31",
              "val": 45777000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "end": "2012-12-31",
              "val": 45777000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 25429000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 24975000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 24362000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 23739000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2019-12-31",
              "val": 11768000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-12-31",
              "val": 130072000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 130072000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2020-12-31",
              "val": 130072000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2020-12-31",
              "val": 130072000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2020-12-31",
              "val": 130072000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 120479000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 117721000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 115794000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 109709000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 109709000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 109709000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 109709000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 109709000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 103499000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 93817000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 91711000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 95720000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 95720000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 95720000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 95720000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 95720000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 93320000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 89296000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 82741000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 82118000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 82118000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 82118000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 82118000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 82118000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 121424000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 115705000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 115905000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 103488000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 103488000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2024-12-31",
              "val": 103488000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2024-12-31",
              "val": 103488000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2024-12-31",
              "val": 103488000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 102750000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 103485000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 98716000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 93933000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2025-12-31",
              "val": 93933000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 93933000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 100818000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 94927000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "IntangibleAssetsNetIncludingGoodwill": {
        "label": "Intangible Assets, Net (Including Goodwill)",
        "description": "Carrying amount of finite-lived intangible assets, indefinite-lived intangible assets and goodwill. Goodwill is an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Intangible assets are assets, not including financial assets, lacking physical substance.",
        "units": {
          "USD": [
            {
              "end": "2013-12-31",
              "val": 85362000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-12-31",
              "val": 82056000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 82056000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 79162000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 79162000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 81998000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 81998000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 89068000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 89068000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 89068000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 89068000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 89068000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 87629000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 85307000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 83607000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 81949000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 81949000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 81949000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 81949000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 81949000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 80329000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 78852000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 77012000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 75692000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 75692000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2019-12-31",
              "val": 75692000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2019-12-31",
              "val": 75692000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 73751000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-06-30",
              "val": 543211000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 555946000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            }
          ]
        }
      },
      "InterestExpense": {
        "label": "Interest Expense",
        "description": "Amount of the cost of borrowed funds accounted for as interest expense.",
        "units": {
          "USD": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": 24000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 85000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 85000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 19000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 19000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 51000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011"
            }
          ]
        }
      },
      "InterestIncomeOperating": {
        "label": "Interest Income, Operating",
        "description": "Amount of operating interest income, including, but not limited to, amortization and accretion of premiums and discounts on securities.",
        "units": {
          "USD": [
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 4213000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 1195000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 2636000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-04-01",
              "end": "2017-06-30",
              "val": 1441000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2017Q2"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 4462000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": 1826000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2017Q3"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 6948000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 6948000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 2176000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 2176000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 4093000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 4093000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": 1917000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": 1917000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2018Q2"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 6327000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 6327000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 2234000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 2234000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2018Q3"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 8576000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 8576000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 2633000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 2633000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 6098000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 3465000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 9576000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 3478000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 12482000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 1986000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1"
            }
          ]
        }
      },
      "InterestIncomeOther": {
        "label": "Interest Income, Other",
        "description": "Amount of interest income earned from interest bearing assets classified as other.",
        "units": {
          "USD": [
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 8576000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 6098000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 3465000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2019Q2"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 9576000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 3478000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2019Q3"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 12482000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 12482000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 1986000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 2459000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 2459000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": 473000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": 473000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2020Q2"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 2788000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 2788000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 329000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 329000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2020Q3"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 3125000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 3125000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 3125000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 1643000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 1643000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 2026000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 2026000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 383000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 383000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2021Q2"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 2427000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 2427000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 401000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 401000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2021Q3"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 3103000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 3103000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 3103000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 677000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 677000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 922000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 922000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": 245000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": 245000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2022Q2"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 2607000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 2607000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": 1685000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": 1685000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2022Q3"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 5367000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 5367000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 5367000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 2337000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 2337000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 6758000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 6758000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 4421000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 4421000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2023Q2"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 12280000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 12280000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 5522000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 5522000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2023Q3"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 17258000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 17258000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 17258000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 4392000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 4392000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 7693000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 7693000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 3301000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 3301000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2024Q2"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 11696000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 11696000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 4003000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 4003000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2024Q3"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 20218000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 20218000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 5316000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 5316000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 8175000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 8175000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 2859000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 2859000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q2"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 11424000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-07-01",
              "end": "2025-09-30",
              "val": 3249000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 16045000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": 3911000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": 8547000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2026-04-01",
              "end": "2026-06-30",
              "val": 4636000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2"
            }
          ]
        }
      },
      "InterestPaid": {
        "label": "Interest Paid, Including Capitalized Interest, Operating and Investing Activities",
        "description": "Amount of cash paid for interest, including, but not limited to, capitalized interest and payment to settle zero-coupon bond attributable to accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount; classified as operating and investing activities.",
        "units": {
          "USD": [
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 84000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 19000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 19000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 51000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 51000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 27000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2012"
            }
          ]
        }
      },
      "InventoryFinishedGoods": {
        "label": "Inventory, Finished Goods, Gross",
        "description": "Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer.",
        "units": {
          "USD": [
            {
              "end": "2010-12-31",
              "val": 242000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2010-12-31",
              "val": 242000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2010-12-31",
              "val": 242000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2011-06-30",
              "val": 1061000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 1758000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 2374000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2011-12-31",
              "val": 2374000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 2374000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2011-12-31",
              "val": 2374000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "end": "2011-12-31",
              "val": 2374000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "end": "2012-03-31",
              "val": 3662000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 5512000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 7296000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 3604000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 3604000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "end": "2012-12-31",
              "val": 3604000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2013-03-31",
              "val": 4865000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-12-31",
              "val": 4555000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013Q4I"
            }
          ]
        }
      },
      "InventoryFinishedGoodsNetOfReserves": {
        "label": "Inventory, Finished Goods, Net of Reserves",
        "description": "Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of merchandise or goods held by the company that are readily available for sale.",
        "units": {
          "USD": [
            {
              "end": "2012-12-31",
              "val": 3604000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "end": "2012-12-31",
              "val": 3604000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-06-30",
              "val": 5345000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 4409000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 4555000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "end": "2013-12-31",
              "val": 4555000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "end": "2013-12-31",
              "val": 4555000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "end": "2013-12-31",
              "val": 4555000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 6286000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 6192000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 6009000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 4815000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 4815000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2014-12-31",
              "val": 4815000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2014-12-31",
              "val": 4815000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "end": "2014-12-31",
              "val": 4815000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 4095000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 3820000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 2590000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 2448000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 2448000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2015-12-31",
              "val": 2448000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2015-12-31",
              "val": 2448000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "end": "2015-12-31",
              "val": 2448000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 3003000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 3886000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 12835000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 6565000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 6565000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "end": "2016-12-31",
              "val": 6565000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
              "val": 6565000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "end": "2016-12-31",
              "val": 6565000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 6483000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 8027000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 8456000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 6810000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 6810000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 6810000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 6810000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 6810000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 11038000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 11880000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 14373000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 15738000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 15738000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 15738000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 15738000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 15738000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 19777000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 18278000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 21815000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 26130000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 26130000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2019-12-31",
              "val": 26130000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2019-12-31",
              "val": 26130000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2019-12-31",
              "val": 26130000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 26214000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-06-30",
              "val": 25861000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 26267000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 31440000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 31440000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2020-12-31",
              "val": 31440000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2020-12-31",
              "val": 31440000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2020-12-31",
              "val": 31440000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 34420000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 51228000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 51572000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 55290000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 55290000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 55290000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 55290000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 55290000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 62366000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 68717000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 72095000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 69436000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 69436000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 69436000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 69436000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 69436000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 74125000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 63475000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 57875000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 60151000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 60151000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 60151000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 60151000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 60151000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 53253000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 47424000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 49986000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 56250000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 56250000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2024-12-31",
              "val": 56250000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2024-12-31",
              "val": 56250000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2024-12-31",
              "val": 56250000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 58802000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 57924000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 67800000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 53368000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2025-12-31",
              "val": 53368000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 53368000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 49625000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 55553000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "InventoryNet": {
        "label": "Inventory, Net",
        "description": "Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.",
        "units": {
          "USD": [
            {
              "end": "2009-12-31",
              "val": 2046000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "end": "2009-12-31",
              "val": 2046000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "end": "2009-12-31",
              "val": 2046000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2009Q4I"
            },
            {
              "end": "2010-06-30",
              "val": 2487000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2010Q2I"
            },
            {
              "end": "2010-09-30",
              "val": 2382000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2010Q3I"
            },
            {
              "end": "2010-12-31",
              "val": 2544000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "end": "2010-12-31",
              "val": 2544000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "end": "2010-12-31",
              "val": 2544000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2010-12-31",
              "val": 2544000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2010-12-31",
              "val": 2544000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-03-31",
              "val": 2867000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2011Q1I"
            },
            {
              "end": "2011-06-30",
              "val": 6272000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 8278000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 9402000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 9402000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2011-12-31",
              "val": 9402000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "end": "2011-12-31",
              "val": 9402000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "end": "2011-12-31",
              "val": 9402000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 13434000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 14623000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 15137000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 15122000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 15122000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "end": "2012-12-31",
              "val": 15122000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "end": "2012-12-31",
              "val": 15122000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "end": "2012-12-31",
              "val": 15122000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 15442000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 15704000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 14662000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 13968000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 13968000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "end": "2013-12-31",
              "val": 13968000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "end": "2013-12-31",
              "val": 13968000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "end": "2013-12-31",
              "val": 13968000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 15840000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 13115000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 15983000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 15928000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 15928000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2014-12-31",
              "val": 15928000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2014-12-31",
              "val": 15928000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "end": "2014-12-31",
              "val": 15928000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 14572000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 16415000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 18939000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 19465000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 19465000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2015-12-31",
              "val": 19465000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2015-12-31",
              "val": 19465000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "end": "2015-12-31",
              "val": 19465000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 22618000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 22992000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 26341000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 27131000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 27131000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "end": "2016-12-31",
              "val": 27131000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
              "val": 27131000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "end": "2016-12-31",
              "val": 27131000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 35174000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 35133000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 36941000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 31688000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 31688000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 31688000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 31688000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 31688000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 35866000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 47252000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 48858000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 55641000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 55641000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 55641000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 55641000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 55641000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 68489000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 81124000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 94795000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 112051000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 112051000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2019-12-31",
              "val": 112051000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2019-12-31",
              "val": 112051000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2019-12-31",
              "val": 112051000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 120977000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-06-30",
              "val": 131276000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 123093000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 139237000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 139237000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2020-12-31",
              "val": 139237000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2020-12-31",
              "val": 139237000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2020-12-31",
              "val": 139237000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 150643000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 178751000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 207116000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 230230000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 230230000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 230230000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 230230000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 230230000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 275669000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 310046000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 320903000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 338752000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 338752000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 338752000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 338752000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 338752000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 311885000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 312736000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 296189000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 296902000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 296902000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 296902000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 296902000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 296902000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 280076000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 259492000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 254119000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 254287000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 254287000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2024-12-31",
              "val": 254287000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2024-12-31",
              "val": 254287000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2024-12-31",
              "val": 254287000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 246567000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 243750000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 228161000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 226343000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2025-12-31",
              "val": 226343000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 226343000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 214944000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 212240000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "InventoryRawMaterials": {
        "label": "Inventory, Raw Materials, Gross",
        "description": "Amount before valuation and LIFO reserves of raw materials expected to be sold, or consumed within one year or operating cycle, if longer.",
        "units": {
          "USD": [
            {
              "end": "2010-12-31",
              "val": 1272000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2010-12-31",
              "val": 1272000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2010-12-31",
              "val": 1272000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2011-06-30",
              "val": 3834000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 4991000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 4542000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2011-12-31",
              "val": 4542000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 4542000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2011-12-31",
              "val": 4542000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "end": "2011-12-31",
              "val": 4542000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "end": "2012-03-31",
              "val": 5032000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 4029000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 4445000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 7629000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 7629000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "end": "2012-12-31",
              "val": 7629000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2013-03-31",
              "val": 7381000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-12-31",
              "val": 5172000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013Q4I"
            }
          ]
        }
      },
      "InventoryRawMaterialsNetOfReserves": {
        "label": "Inventory, Raw Materials, Net of Reserves",
        "description": "Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of unprocessed items to be consumed in the manufacturing or production process.",
        "units": {
          "USD": [
            {
              "end": "2012-12-31",
              "val": 7629000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "end": "2012-12-31",
              "val": 7629000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-06-30",
              "val": 6464000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 6779000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 5172000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "end": "2013-12-31",
              "val": 5172000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "end": "2013-12-31",
              "val": 5172000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "end": "2013-12-31",
              "val": 5172000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 5962000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 3493000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 6240000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 8143000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 8143000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2014-12-31",
              "val": 8143000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2014-12-31",
              "val": 8143000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "end": "2014-12-31",
              "val": 8143000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 5990000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 7352000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 9690000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 9950000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 9950000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2015-12-31",
              "val": 9950000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2015-12-31",
              "val": 9950000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "end": "2015-12-31",
              "val": 9950000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 9676000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 8217000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 12018000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 9793000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 9793000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "end": "2016-12-31",
              "val": 9793000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
              "val": 9793000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "end": "2016-12-31",
              "val": 9793000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 14630000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 13258000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 15666000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 12721000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 12721000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 12721000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 12721000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 12721000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 13386000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 22976000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 23395000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 26119000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 26119000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 26119000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 26119000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 26119000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 29002000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 37094000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 43808000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 54947000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 54947000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2019-12-31",
              "val": 54947000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2019-12-31",
              "val": 54947000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2019-12-31",
              "val": 54947000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 59136000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-06-30",
              "val": 73183000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 70659000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 76404000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 76404000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2020-12-31",
              "val": 76404000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2020-12-31",
              "val": 76404000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2020-12-31",
              "val": 76404000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 75836000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 90018000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 104017000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 123234000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 123234000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 123234000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 123234000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 123234000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 133808000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 159037000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 147629000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 172758000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 172758000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 172758000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 172758000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 172758000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 146435000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 148793000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 139681000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 145492000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 145492000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 145492000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 145492000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 145492000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 134305000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 125034000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 126959000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 124377000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 124377000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2024-12-31",
              "val": 124377000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2024-12-31",
              "val": 124377000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2024-12-31",
              "val": 124377000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 118333000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 116409000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 97264000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 107296000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2025-12-31",
              "val": 107296000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 107296000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 96429000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 92010000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "InventoryWorkInProcess": {
        "label": "Inventory, Work in Process, Gross",
        "description": "Amount before valuation and LIFO reserves of merchandise or goods in the production process expected to be completed within one year or operating cycle, if longer.",
        "units": {
          "USD": [
            {
              "end": "2010-12-31",
              "val": 1030000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2010-12-31",
              "val": 1030000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2010-12-31",
              "val": 1030000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2011-06-30",
              "val": 1377000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 1529000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 2486000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2011-12-31",
              "val": 2486000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 2486000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2011-12-31",
              "val": 2486000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "end": "2011-12-31",
              "val": 2486000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "end": "2012-03-31",
              "val": 4740000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 5082000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 3396000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 3889000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 3889000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "end": "2012-12-31",
              "val": 3889000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2013-03-31",
              "val": 3196000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-12-31",
              "val": 4241000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013Q4I"
            }
          ]
        }
      },
      "InventoryWorkInProcessNetOfReserves": {
        "label": "Inventory, Work in Process, Net of Reserves",
        "description": "Carrying amount, net of reserves and adjustments, as of the balance sheet date of merchandise or goods which are partially completed. This inventory is generally comprised of raw materials, labor and factory overhead costs, which require further materials, labor and overhead to be converted into finished goods, and which generally require the use of estimates to determine percentage complete and pricing.",
        "units": {
          "USD": [
            {
              "end": "2012-12-31",
              "val": 3889000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "end": "2012-12-31",
              "val": 3889000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-06-30",
              "val": 3895000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 3474000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 4241000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "end": "2013-12-31",
              "val": 4241000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "end": "2013-12-31",
              "val": 4241000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "end": "2013-12-31",
              "val": 4241000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 3592000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 3430000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 3734000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 2970000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 2970000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2014-12-31",
              "val": 2970000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2014-12-31",
              "val": 2970000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "end": "2014-12-31",
              "val": 2970000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 4487000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 5243000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 6659000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 7067000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 7067000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2015-12-31",
              "val": 7067000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2015-12-31",
              "val": 7067000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "end": "2015-12-31",
              "val": 7067000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 9939000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 10889000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 1488000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 10773000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 10773000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "end": "2016-12-31",
              "val": 10773000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
              "val": 10773000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "end": "2016-12-31",
              "val": 10773000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 14061000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 13848000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 12819000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 12157000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 12157000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 12157000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 12157000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 12157000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 11442000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 12396000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 11090000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 13784000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 13784000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 13784000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 13784000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 13784000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 19710000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 25752000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 29172000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 30974000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 30974000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2019-12-31",
              "val": 30974000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2019-12-31",
              "val": 30974000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2019-12-31",
              "val": 30974000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 35627000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-06-30",
              "val": 32232000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 26167000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 31393000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 31393000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2020-12-31",
              "val": 31393000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2020-12-31",
              "val": 31393000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2020-12-31",
              "val": 31393000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 40387000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 37505000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 51527000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 51706000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 51706000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 51706000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 51706000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 51706000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 79495000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 82292000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 101179000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 96558000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 96558000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 96558000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 96558000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 96558000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 91325000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 100468000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 98633000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 91259000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 91259000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 91259000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 91259000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 91259000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 92518000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 87034000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 77174000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 73660000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 73660000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2024-12-31",
              "val": 73660000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2024-12-31",
              "val": 73660000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2024-12-31",
              "val": 73660000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 69432000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 69417000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 63097000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 65679000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2025-12-31",
              "val": 65679000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 65679000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 68890000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 64677000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "InvestmentIncomeInterest": {
        "label": "Investment Income, Interest",
        "description": "Amount before accretion (amortization) of purchase discount (premium) of interest income on nonoperating securities.",
        "units": {
          "USD": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": 3052000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 579000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 579000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 555000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 555000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 555000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 552000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 552000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 757000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2012"
            }
          ]
        }
      },
      "LeaseCost": {
        "label": "Lease, Cost",
        "description": "Amount of lease cost recognized by lessee for lease contract.",
        "units": {
          "USD": [
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 11906000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 6188000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 18299000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 6393000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 24677000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 24677000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 24677000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 29254000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 29254000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 29254000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 44375000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 44375000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 44375000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 60003000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 60003000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 60003000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 60627000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 60627000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 60627000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 45929000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 45929000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 47455000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            }
          ]
        }
      },
      "LesseeOperatingLeaseLiabilityPaymentsDue": {
        "label": "Lessee, Operating Lease, Liability, to be Paid",
        "description": "Amount of lessee's undiscounted obligation for lease payment for operating lease.",
        "units": {
          "USD": [
            {
              "end": "2019-03-31",
              "val": 84371000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 84649000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 62425000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 64483000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-12-31",
              "val": 100520000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-12-31",
              "val": 143030000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-12-31",
              "val": 144005000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-12-31",
              "val": 140248000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-12-31",
              "val": 130521000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 125111000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025Q4I"
            }
          ]
        }
      },
      "LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive": {
        "label": "Lessee, Operating Lease, Liability, to be Paid, after Year Five",
        "description": "Amount of lessee's undiscounted obligation for lease payment for operating lease due after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "units": {
          "USD": [
            {
              "end": "2019-03-31",
              "val": 13302000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 13081000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 7076000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 5453000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-12-31",
              "val": 29280000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-12-31",
              "val": 45461000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-12-31",
              "val": 39449000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-12-31",
              "val": 25901000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-12-31",
              "val": 15517000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 13060000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025Q4I"
            }
          ]
        }
      },
      "LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths": {
        "label": "Lessee, Operating Lease, Liability, to be Paid, Year One",
        "description": "Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "units": {
          "USD": [
            {
              "end": "2019-12-31",
              "val": 18354000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-12-31",
              "val": 25358000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-12-31",
              "val": 26035000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-12-31",
              "val": 30596000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-12-31",
              "val": 33838000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-12-31",
              "val": 35195000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 35694000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025Q4I"
            }
          ]
        }
      },
      "LesseeOperatingLeaseLiabilityPaymentsDueYearFive": {
        "label": "Lessee, Operating Lease, Liability, to be Paid, Year Five",
        "description": "Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "units": {
          "USD": [
            {
              "end": "2019-03-31",
              "val": 8899000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 9323000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 7014000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 2595000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-12-31",
              "val": 4944000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-12-31",
              "val": 13113000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-12-31",
              "val": 13363000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-12-31",
              "val": 12746000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-12-31",
              "val": 10225000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 7212000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025Q4I"
            }
          ]
        }
      },
      "LesseeOperatingLeaseLiabilityPaymentsDueYearFour": {
        "label": "Lessee, Operating Lease, Liability, to be Paid, Year Four",
        "description": "Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "units": {
          "USD": [
            {
              "end": "2019-03-31",
              "val": 11915000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 13157000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 10454000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 8177000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-12-31",
              "val": 6550000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-12-31",
              "val": 15517000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-12-31",
              "val": 16511000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-12-31",
              "val": 16933000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-12-31",
              "val": 16624000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 15564000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025Q4I"
            }
          ]
        }
      },
      "LesseeOperatingLeaseLiabilityPaymentsDueYearThree": {
        "label": "Lessee, Operating Lease, Liability, to be Paid, Year Three",
        "description": "Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "units": {
          "USD": [
            {
              "end": "2019-03-31",
              "val": 16398000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 18381000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 15990000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 11847000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-12-31",
              "val": 14683000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-12-31",
              "val": 18284000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-12-31",
              "val": 19480000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-12-31",
              "val": 22449000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-12-31",
              "val": 22103000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 23986000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025Q4I"
            }
          ]
        }
      },
      "LesseeOperatingLeaseLiabilityPaymentsDueYearTwo": {
        "label": "Lessee, Operating Lease, Liability, to be Paid, Year Two",
        "description": "Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "units": {
          "USD": [
            {
              "end": "2019-03-31",
              "val": 18148000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 20373000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 17934000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 18057000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-12-31",
              "val": 19705000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-12-31",
              "val": 24620000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-12-31",
              "val": 24606000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-12-31",
              "val": 28381000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-12-31",
              "val": 30857000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 29595000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025Q4I"
            }
          ]
        }
      },
      "LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear": {
        "label": "Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year",
        "description": "Amount of lessee's undiscounted obligation for lease payment for operating lease having initial or remaining lease term in excess of one year to be paid in remainder of current fiscal year.",
        "units": {
          "USD": [
            {
              "end": "2019-03-31",
              "val": 15709000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 10334000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 3957000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            }
          ]
        }
      },
      "LesseeOperatingLeaseLiabilityUndiscountedExcessAmount": {
        "label": "Lessee, Operating Lease, Liability, Undiscounted Excess Amount",
        "description": "Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for operating lease.",
        "units": {
          "USD": [
            {
              "end": "2019-03-31",
              "val": 9472000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 9365000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 5354000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 5283000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-12-31",
              "val": 14340000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-12-31",
              "val": 17655000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-12-31",
              "val": 17097000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-12-31",
              "val": 13629000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-12-31",
              "val": 11244000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 10665000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025Q4I"
            }
          ]
        }
      },
      "LessorOperatingLeasePaymentsToBeReceived": {
        "label": "Lessor, Operating Lease, Payments to be Received",
        "description": "Amount of lease payments to be received by lessor for operating lease.",
        "units": {
          "USD": [
            {
              "end": "2019-06-30",
              "val": 12296000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 12085000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 11872000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-12-31",
              "val": 11014000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2022-12-31",
              "val": 35883000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-12-31",
              "val": 49815000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-12-31",
              "val": 46958000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 72301000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025Q4I"
            }
          ]
        }
      },
      "LessorOperatingLeasePaymentsToBeReceivedFiveYears": {
        "label": "Lessor, Operating Lease, Payment to be Received, Year Five",
        "description": "Amount of lease payment to be received by lessor for operating lease in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "units": {
          "USD": [
            {
              "end": "2019-06-30",
              "val": 1229000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 1229000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 1259000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-12-31",
              "val": 1291000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2020Q4I"
            }
          ]
        }
      },
      "LessorOperatingLeasePaymentsToBeReceivedFourYears": {
        "label": "Lessor, Operating Lease, Payment to be Received, Year Four",
        "description": "Amount of lease payment to be received by lessor for operating lease in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "units": {
          "USD": [
            {
              "end": "2019-06-30",
              "val": 1199000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 1199000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 1229000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-12-31",
              "val": 1259000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 1080000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025Q4I"
            }
          ]
        }
      },
      "LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths": {
        "label": "Lessor, Operating Lease, Payment to be Received, Year One",
        "description": "Amount of lease payment to be received by lessor for operating lease in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "units": {
          "USD": [
            {
              "end": "2020-12-31",
              "val": 1145000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2022-12-31",
              "val": 15714000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-12-31",
              "val": 22737000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-12-31",
              "val": 24797000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 33898000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025Q4I"
            }
          ]
        }
      },
      "LessorOperatingLeasePaymentsToBeReceivedRemainderOfFiscalYear": {
        "label": "Lessor, Operating Lease, Payment to be Received, Remainder of Fiscal Year",
        "description": "Amount of lease payment to be received by lessor for operating lease in remainder of current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "units": {
          "USD": [
            {
              "end": "2019-06-30",
              "val": 423000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 212000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 858000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019Q4I"
            }
          ]
        }
      },
      "LessorOperatingLeasePaymentsToBeReceivedThereafter": {
        "label": "Lessor, Operating Lease, Payment to be Received, after Year Five",
        "description": "Amount of lease payment to be received by lessor for operating lease after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "units": {
          "USD": [
            {
              "end": "2019-06-30",
              "val": 7441000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 7441000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 6182000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-12-31",
              "val": 4891000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 0,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025Q4I"
            }
          ]
        }
      },
      "LessorOperatingLeasePaymentsToBeReceivedThreeYears": {
        "label": "Lessor, Operating Lease, Payment to be Received, Year Three",
        "description": "Amount of lease payment to be received by lessor for operating lease in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "units": {
          "USD": [
            {
              "end": "2019-06-30",
              "val": 1145000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 1145000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 1199000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-12-31",
              "val": 1229000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2022-12-31",
              "val": 6202000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-12-31",
              "val": 8908000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-12-31",
              "val": 5865000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 8736000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025Q4I"
            }
          ]
        }
      },
      "LessorOperatingLeasePaymentsToBeReceivedTwoYears": {
        "label": "Lessor, Operating Lease, Payment to be Received, Year Two",
        "description": "Amount of lease payment to be received by lessor for operating lease in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "units": {
          "USD": [
            {
              "end": "2019-06-30",
              "val": 859000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 859000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 1145000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-12-31",
              "val": 1199000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2022-12-31",
              "val": 13967000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-12-31",
              "val": 18170000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-12-31",
              "val": 16296000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 28587000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025Q4I"
            }
          ]
        }
      },
      "Liabilities": {
        "label": "Liabilities",
        "description": "Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future.",
        "units": {
          "USD": [
            {
              "end": "2009-12-31",
              "val": 82204000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "end": "2009-12-31",
              "val": 82204000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "end": "2009-12-31",
              "val": 82204000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2009Q4I"
            },
            {
              "end": "2010-06-30",
              "val": 74739000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2010Q2I"
            },
            {
              "end": "2010-09-30",
              "val": 85833000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2010Q3I"
            },
            {
              "end": "2010-12-31",
              "val": 99196000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "end": "2010-12-31",
              "val": 99196000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "end": "2010-12-31",
              "val": 99196000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2010-12-31",
              "val": 99196000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2010-12-31",
              "val": 99196000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-03-31",
              "val": 94877000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2011Q1I"
            },
            {
              "end": "2011-06-30",
              "val": 117267000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 129044000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 158483000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 158483000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2011-12-31",
              "val": 158483000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "end": "2011-12-31",
              "val": 158483000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "end": "2011-12-31",
              "val": 158483000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 147414000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 157868000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 165999000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 174995000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 174995000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "end": "2012-12-31",
              "val": 174995000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "end": "2012-12-31",
              "val": 174995000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "end": "2012-12-31",
              "val": 174995000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 165127000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 183696000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 183522000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 198177000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 198177000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "end": "2013-12-31",
              "val": 198177000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "end": "2013-12-31",
              "val": 198177000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "end": "2013-12-31",
              "val": 198177000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 188888000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 209637000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 225833000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 235226000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 235226000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2014-12-31",
              "val": 235226000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2014-12-31",
              "val": 235226000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "end": "2014-12-31",
              "val": 235226000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 234871000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 258780000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 281303000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 310707000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 310707000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2015-12-31",
              "val": 310707000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2015-12-31",
              "val": 310707000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "end": "2015-12-31",
              "val": 310707000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 315530000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 341415000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 386583000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 400762000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 400762000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "end": "2016-12-31",
              "val": 400762000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
              "val": 400762000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "end": "2016-12-31",
              "val": 400762000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 414418000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 472899000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 515665000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 627486000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 629721000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 629721000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 629721000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 629721000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 655271000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 697630000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 735422000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 799567000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 799567000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 799567000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 799567000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 799567000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 978726000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 972335000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 1044831000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 1154533000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 1154533000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2019-12-31",
              "val": 1154533000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2019-12-31",
              "val": 1154533000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2019-12-31",
              "val": 1154533000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 1111851000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-06-30",
              "val": 1180812000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 1381620000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 1595818000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 1595818000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2020-12-31",
              "val": 1595818000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2020-12-31",
              "val": 1595818000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2020-12-31",
              "val": 1595818000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 1676206000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 2011158000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 2133347000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 2319396000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 2319396000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 2319396000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 2319396000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 2319396000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 2276562000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 2211038000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 2218180000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 2346589000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 2346589000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 2346589000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 2346589000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 2346589000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 2421399000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 2506249000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 2516685000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 2453388000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 2453388000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 2453388000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 2453388000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 2453388000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 2395894000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 2400416000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 2421620000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 2362615000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 2362615000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2024-12-31",
              "val": 2362615000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2024-12-31",
              "val": 2362615000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2024-12-31",
              "val": 2362615000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 2308577000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 2306315000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 2276094000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 2184546000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2025-12-31",
              "val": 2184546000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 2184546000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 2164754000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 2185128000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "LiabilitiesAndStockholdersEquity": {
        "label": "Liabilities and Equity",
        "description": "Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any.",
        "units": {
          "USD": [
            {
              "end": "2009-12-31",
              "val": 355240000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "end": "2009-12-31",
              "val": 355240000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "end": "2009-12-31",
              "val": 355240000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2009Q4I"
            },
            {
              "end": "2010-06-30",
              "val": 408692000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2010Q2I"
            },
            {
              "end": "2010-09-30",
              "val": 445235000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2010Q3I"
            },
            {
              "end": "2010-12-31",
              "val": 476943000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "end": "2010-12-31",
              "val": 476943000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "end": "2010-12-31",
              "val": 476943000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2010-12-31",
              "val": 476943000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2010-12-31",
              "val": 476943000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-03-31",
              "val": 496982000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2011Q1I"
            },
            {
              "end": "2011-06-30",
              "val": 547049000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 585920000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 649264000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 649264000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2011-12-31",
              "val": 649264000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "end": "2011-12-31",
              "val": 649264000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "end": "2011-12-31",
              "val": 649264000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 670436000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 744163000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 768164000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 756312000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 756312000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "end": "2012-12-31",
              "val": 756312000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "end": "2012-12-31",
              "val": 756312000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "end": "2012-12-31",
              "val": 756312000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 726245000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 703894000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 759206000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 832147000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 832147000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "end": "2013-12-31",
              "val": 832147000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "end": "2013-12-31",
              "val": 832147000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "end": "2013-12-31",
              "val": 832147000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 885641000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 885433000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 948289000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 987997000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 987997000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2014-12-31",
              "val": 987997000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2014-12-31",
              "val": 987997000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "end": "2014-12-31",
              "val": 987997000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 1028405000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 1028581000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 1079562000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 1158633000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 1158633000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2015-12-31",
              "val": 1158633000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2015-12-31",
              "val": 1158633000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "end": "2015-12-31",
              "val": 1158633000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 1207560000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 1251273000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 1358893000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 1396151000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 1396151000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "end": "2016-12-31",
              "val": 1396151000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
              "val": 1396151000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "end": "2016-12-31",
              "val": 1396151000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 1459293000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 1551187000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 1697623000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 1777856000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 1784009000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 1784009000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 1784009000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 1784009000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 1782731000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 1916589000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 1928405000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 2052458000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 2052458000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 2052458000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 2052458000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 2052458000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 2234430000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 2346017000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 2350380000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 2500702000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 2500702000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2019-12-31",
              "val": 2500702000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2019-12-31",
              "val": 2500702000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2019-12-31",
              "val": 2500702000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 3964840000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-06-30",
              "val": 4025857000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 4415091000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 4829683000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 4829683000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2020-12-31",
              "val": 4829683000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2020-12-31",
              "val": 4829683000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2020-12-31",
              "val": 4829683000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 5069782000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 5395568000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 5650109000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 5942110000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 5942110000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 5942110000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 5942110000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 5942110000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 5943414000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 5810119000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 5912802000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 5947947000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 5947947000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 5947947000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 5947947000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 5947947000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 5901448000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 6144550000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 6318551000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 6083877000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 6083877000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 6083877000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 6083877000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 6083877000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 6155754000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 6158324000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 6365974000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 6214600000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 6214600000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2024-12-31",
              "val": 6214600000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2024-12-31",
              "val": 6214600000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2024-12-31",
              "val": 6214600000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 6102820000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 6219094000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 6233552000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 6233693000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2025-12-31",
              "val": 6233693000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 6233693000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 6314173000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 6417581000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "LiabilitiesCurrent": {
        "label": "Liabilities, Current",
        "description": "Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer.",
        "units": {
          "USD": [
            {
              "end": "2009-12-31",
              "val": 81243000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "end": "2009-12-31",
              "val": 81243000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "end": "2009-12-31",
              "val": 81243000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2009Q4I"
            },
            {
              "end": "2010-06-30",
              "val": 73807000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2010Q2I"
            },
            {
              "end": "2010-09-30",
              "val": 80036000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2010Q3I"
            },
            {
              "end": "2010-12-31",
              "val": 92974000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "end": "2010-12-31",
              "val": 92974000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "end": "2010-12-31",
              "val": 92974000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2010-12-31",
              "val": 92974000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2010-12-31",
              "val": 92974000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-03-31",
              "val": 87994000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2011Q1I"
            },
            {
              "end": "2011-06-30",
              "val": 109451000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 120187000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 148117000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 148117000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2011-12-31",
              "val": 148117000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "end": "2011-12-31",
              "val": 148117000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "end": "2011-12-31",
              "val": 148117000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 135828000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 143836000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 151688000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 155771000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 155771000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "end": "2012-12-31",
              "val": 155771000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "end": "2012-12-31",
              "val": 155771000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "end": "2012-12-31",
              "val": 155771000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 143855000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 160654000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 163268000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 175338000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 175338000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "end": "2013-12-31",
              "val": 175338000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "end": "2013-12-31",
              "val": 175338000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "end": "2013-12-31",
              "val": 175338000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 170855000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 187113000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 198560000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 201811000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 201811000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2014-12-31",
              "val": 201811000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2014-12-31",
              "val": 201811000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "end": "2014-12-31",
              "val": 201811000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 200575000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 222925000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 244511000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 271672000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 271672000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2015-12-31",
              "val": 271672000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2015-12-31",
              "val": 271672000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "end": "2015-12-31",
              "val": 271672000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 274750000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 298989000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 343051000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 354335000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 354335000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "end": "2016-12-31",
              "val": 354335000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
              "val": 354335000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "end": "2016-12-31",
              "val": 354335000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 365554000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 424796000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 461369000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 497816000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 500051000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 500051000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 500051000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 500051000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 517985000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 566646000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 618209000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 692073000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 692073000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 692073000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 692073000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 692073000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 804884000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 789046000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 870144000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 970970000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 970970000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2019-12-31",
              "val": 970970000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2019-12-31",
              "val": 970970000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2019-12-31",
              "val": 970970000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 910686000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-06-30",
              "val": 941592000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 1121794000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 1325601000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 1325601000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2020-12-31",
              "val": 1325601000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2020-12-31",
              "val": 1325601000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2020-12-31",
              "val": 1325601000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 1393842000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 1696581000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 1790315000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 1924071000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 1924071000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 1924071000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 1924071000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 1924071000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 1863647000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 1804414000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 1809403000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 1925887000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 1925887000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 1925887000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 1925887000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 1925887000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 2004598000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 2107065000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 2122986000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 2066611000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 2066611000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 2066611000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 2066611000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 2066611000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 2023041000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 2040117000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 2063613000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 2038027000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 2038027000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2024-12-31",
              "val": 2038027000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2024-12-31",
              "val": 2038027000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2024-12-31",
              "val": 2038027000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 1990948000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 1995483000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 1966466000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 1920015000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2025-12-31",
              "val": 1920015000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 1920015000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 1905853000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 1908597000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "LineOfCredit": {
        "label": "Long-term Line of Credit",
        "description": "The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.",
        "units": {
          "USD": [
            {
              "end": "2014-12-31",
              "val": 0,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 0,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 0,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 0,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 0,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 0,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 0,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2019-03-31",
              "val": 0,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 0,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 0,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 0,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 0,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2024-12-31",
              "val": 0,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2024Q4I"
            }
          ]
        }
      },
      "LineOfCreditFacilityAmountOutstanding": {
        "label": "Line of Credit Facility, Amount Outstanding (Deprecated 2014-01-31)",
        "description": "Amount borrowed under the credit facility as of the balance sheet date.",
        "units": {
          "USD": [
            {
              "end": "2011-06-30",
              "val": 0,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 0,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 0,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 0,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 0,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 0,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 0,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-12-31",
              "val": 0,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013Q4I"
            }
          ]
        }
      },
      "LineOfCreditFacilityCurrentBorrowingCapacity": {
        "label": "Line of Credit Facility, Current Borrowing Capacity",
        "description": "Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.",
        "units": {
          "USD": [
            {
              "end": "2013-03-22",
              "val": 10000000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-03-22",
              "val": 10000000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2013-03-22",
              "val": 10000000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2013-03-22",
              "val": 10000000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2013-03-22",
              "val": 10000000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2013-03-22",
              "val": 10000000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2013-03-22",
              "val": 10000000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2013-03-22",
              "val": 10000000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2013-03-22",
              "val": 10000000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2013-03-22",
              "val": 10000000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2018-02-27",
              "val": 50000000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2018-02-27",
              "val": 50000000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2018-02-27",
              "val": 50000000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2018-02-27",
              "val": 50000000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-02-27",
              "val": 50000000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-02-27",
              "val": 50000000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-02-27",
              "val": 50000000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-02-27",
              "val": 50000000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2018-02-27",
              "val": 50000000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2018Q1I"
            }
          ]
        }
      },
      "LineOfCreditFacilityMaximumBorrowingCapacity": {
        "label": "Line of Credit Facility, Maximum Borrowing Capacity",
        "description": "Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.",
        "units": {
          "USD": [
            {
              "end": "2010-12-14",
              "val": 30000000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-06-30",
              "val": 30000000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 30000000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 30000000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 30000000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 30000000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 30000000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2013-03-22",
              "val": 50000000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-03-22",
              "val": 50000000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2013-03-22",
              "val": 50000000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2013-03-22",
              "val": 50000000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2013-03-22",
              "val": 50000000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2013-03-22",
              "val": 50000000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2013-03-22",
              "val": 50000000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2013-03-22",
              "val": 50000000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2013-03-22",
              "val": 50000000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2013-03-22",
              "val": 50000000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2018-02-27",
              "val": 200000000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2018-02-27",
              "val": 200000000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2018-02-27",
              "val": 200000000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2018-02-27",
              "val": 200000000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-02-27",
              "val": 200000000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-02-27",
              "val": 200000000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-02-27",
              "val": 200000000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-02-27",
              "val": 200000000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2018-02-27",
              "val": 200000000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2018Q1I"
            }
          ]
        }
      },
      "LitigationReserve": {
        "label": "Estimated Litigation Liability",
        "description": "Aggregate carrying amount of the estimated litigation liability for known or estimated probable loss from litigation, which may include attorneys' fees and other litigation costs.",
        "units": {
          "USD": [
            {
              "end": "2010-12-31",
              "val": 4549000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2010-12-31",
              "val": 4549000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2010-12-31",
              "val": 4549000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2011-06-30",
              "val": 10000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2I"
            }
          ]
        }
      },
      "LitigationSettlementAmountAwardedFromOtherParty": {
        "label": "Litigation Settlement, Amount Awarded from Other Party",
        "description": "Amount awarded from other party in judgment or settlement of litigation.",
        "units": {
          "USD": [
            {
              "end": "2021-03-12",
              "val": 43400000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2021-03-12",
              "val": 43400000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2021-03-12",
              "val": 43400000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2021-03-12",
              "val": 43400000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-03-12",
              "val": 43400000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2021-03-12",
              "val": 43400000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2022-10-27",
              "val": 63000000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-10-27",
              "val": 63000000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2022-10-27",
              "val": 63000000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2023-09-08",
              "val": 63000000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2023-09-08",
              "val": 63000000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-09-08",
              "val": 63000000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q3I"
            }
          ]
        }
      },
      "LoansReceivableNet": {
        "label": "Loans Receivable, Net (Deprecated 2019-01-31)",
        "description": "Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes loans held for sale. Excludes loans and leases covered under loss sharing agreements.",
        "units": {
          "USD": [
            {
              "end": "2017-12-31",
              "val": 30000000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 30000000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 30000000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 30000000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 0,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 0,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 0,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2018Q4I"
            }
          ]
        }
      },
      "LongTermPurchaseCommitmentAmount": {
        "label": "Long-term Purchase Commitment, Amount",
        "description": "The minimum amount the entity agreed to spend under the long-term purchase commitment.",
        "units": {
          "USD": [
            {
              "end": "2017-11-27",
              "val": 305200000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 425900000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 425900000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2018"
            },
            {
              "end": "2019-05-29",
              "val": 425900000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2021-06-24",
              "val": 348000000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2021-06-24",
              "val": 348000000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q2I"
            }
          ]
        }
      },
      "MarketableSecurities": {
        "label": "Marketable Securities",
        "description": "Amount of investment in marketable security.",
        "units": {
          "USD": [
            {
              "end": "2012-12-31",
              "val": 49737000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 49737000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-12-31",
              "val": 229018000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 229018000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-12-31",
              "val": 402679000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 402679000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 510951000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 510951000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 310764000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 310764000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 311979000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 311979000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 107572000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 107572000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-12-31",
              "val": 318202000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019Q4I"
            }
          ]
        }
      },
      "MarketableSecuritiesCurrent": {
        "label": "Marketable Securities, Current",
        "description": "Amount of investment in marketable security, classified as current.",
        "units": {
          "USD": [
            {
              "end": "2009-12-31",
              "val": 19978000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "end": "2009-12-31",
              "val": 19978000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "end": "2009-12-31",
              "val": 19978000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2009Q4I"
            },
            {
              "end": "2010-06-30",
              "val": 8998000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2010Q2I"
            },
            {
              "end": "2010-09-30",
              "val": 7396000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2010Q3I"
            },
            {
              "end": "2010-12-31",
              "val": 8615000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "end": "2010-12-31",
              "val": 8615000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-03-31",
              "val": 8328000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2011Q1I"
            },
            {
              "end": "2012-12-31",
              "val": 28485000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 28485000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-12-31",
              "val": 127040000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 127040000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-12-31",
              "val": 254787000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 254787000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 359581000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 359581000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 250981000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 250981000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 272031000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 272031000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 98460000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 98460000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-12-31",
              "val": 318202000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019Q4I"
            }
          ]
        }
      },
      "MarketableSecuritiesNoncurrent": {
        "label": "Marketable Securities, Noncurrent",
        "description": "Amount of investment in marketable security, classified as noncurrent.",
        "units": {
          "USD": [
            {
              "end": "2010-09-30",
              "val": 7829000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2010Q3I"
            },
            {
              "end": "2010-12-31",
              "val": 9089000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "end": "2010-12-31",
              "val": 9089000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-03-31",
              "val": 5615000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2011Q1I"
            },
            {
              "end": "2012-12-31",
              "val": 21252000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 21252000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-12-31",
              "val": 101978000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 101978000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-12-31",
              "val": 147892000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 147892000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 151370000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 151370000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 59783000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 59783000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 39948000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 39948000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 9112000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 9112000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-12-31",
              "val": 0,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019Q4I"
            }
          ]
        }
      },
      "NetCashProvidedByUsedInFinancingActivities": {
        "label": "Net Cash Provided by (Used in) Financing Activities",
        "description": "Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.",
        "units": {
          "USD": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": -40355000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2009-01-01",
              "end": "2009-06-30",
              "val": 3850000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2009-01-01",
              "end": "2009-09-30",
              "val": 5976000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 6837000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 6837000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-03-31",
              "val": 5261000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2010Q1"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 6364000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 6364000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 10018000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 10018000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 14707000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 14707000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 14707000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 3749000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 3749000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 5817000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2011Q1"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 15128000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 15128000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 20502000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 18401000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 24389000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 27241000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 27241000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 27241000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-30",
              "val": 14291000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 6248000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 14291000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 14291000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 36283000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 36283000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 46819000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 46819000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 10205000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 10205000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 10205000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 15423000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 15423000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": -61896000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": -61896000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": -48902000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": -48902000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": -38171000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": -38171000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": -38171000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 21061000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 21061000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": -45867000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": -45867000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": -46918000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": -46918000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": -66420000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": -66420000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": -66420000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": -7097000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": -7097000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": -74927000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": -74927000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": -88955000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": -88955000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": -100786000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": -100786000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": -100786000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": -9106000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": -9106000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": -55508000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": -55508000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": -57619000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": -57619000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": -95524000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": -95524000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": -95524000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": -33001000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": -33001000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": -84240000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": -84240000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": -79036000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": -79036000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": -135500000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": -135500000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": -135500000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": -139822000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": -139822000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": -170745000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": -170745000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": -315151000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": -315151000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": -369434000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": -369434000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": -369434000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": -92762000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": -92762000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": -188381000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": -188381000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": -383163000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": -383163000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": -485540000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": -485540000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": -485540000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": -34733000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": -34733000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": -36376000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": -36376000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": -28360000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": -28360000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": -30808000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": -30808000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": -30808000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": -53435000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": -53435000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": -291756000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": -291756000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": -356759000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": -356759000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": -458332000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": -458332000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": -458332000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": -111742000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": -111742000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": -312396000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": -312396000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": -301498000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": -301498000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": -501686000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": -501686000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": -501686000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": -258961000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": -258961000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": -259892000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": -259892000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": -248059000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": -248059000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": -598340000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": -598340000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": -598340000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": -11716000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": -11716000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": -163275000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": -163275000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": -152703000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": -152703000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": -355722000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": -355722000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": -206756000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": -206756000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": -303055000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": -303055000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": -367174000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": -464580000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": -48128000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": -115575000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            }
          ]
        }
      },
      "NetCashProvidedByUsedInInvestingActivities": {
        "label": "Net Cash Provided by (Used in) Investing Activities",
        "description": "Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.",
        "units": {
          "USD": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": -1055000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2009-01-01",
              "end": "2009-06-30",
              "val": 2111000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2009-01-01",
              "end": "2009-09-30",
              "val": 2921000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": -1556000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": -1556000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-03-31",
              "val": 212000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2010Q1"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 1959000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 1959000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": -8556000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": -8556000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": -15920000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": -15920000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": -15920000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": -7226000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": -7226000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2011Q1"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": -188206000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": -188206000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": -199297000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": -199297000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": -211606000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": -211606000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": -211606000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": -37995000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": -37995000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": -56910000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": -56910000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": -65648000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": -65648000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": -78300000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": -78300000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": -78300000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": -3445000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": -3445000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": -143772000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": -143772000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": -199989000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": -199989000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": -210734000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": -210734000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": -210734000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": -99347000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": -99347000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": -117583000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": -117583000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": -171373000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": -171373000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": -201627000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": -201627000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": -201627000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": -36661000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": -36661000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": -60322000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": -60322000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": -92625000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": -92625000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": -166361000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": -166361000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": -166361000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": -35316000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": -35316000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": -51503000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": -51503000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 142859000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 142859000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 72848000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 72848000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 73028000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": -145298000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": -148462000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": -108554000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": -111718000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": -228620000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": -231784000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": -248313000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": -251477000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": -251477000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 109269000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 109269000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 54003000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 54003000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": -24021000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": -24021000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 6927000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 6927000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 6927000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": -74418000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": -74418000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": -321020000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": -321020000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": -290333000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": -290333000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": -350444000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": -350444000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": -350444000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 276211000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 276211000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": -172326000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": -172326000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": -186840000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": -186840000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": -231506000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": -231506000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": -231506000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 4566000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 4566000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": -123920000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": -123920000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": -255719000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": -255719000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": -563430000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": -563430000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": -563430000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": -90198000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": -90198000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": -72078000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": -72078000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": -157506000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": -157506000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": -213316000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": -213316000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": -213316000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": -52829000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": -52829000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": -178314000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": -178314000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": -182619000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": -182619000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": -195943000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": -195943000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": -195943000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": -79584000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": -79584000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": -192077000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": -192077000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": -200996000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": -200996000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": -254912000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": -254912000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": -25289000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": -25289000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": -56768000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": -56768000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": -76529000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": -112445000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": -131581000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": -213738000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            }
          ]
        }
      },
      "NetCashProvidedByUsedInOperatingActivities": {
        "label": "Net Cash Provided by (Used in) Operating Activities",
        "description": "Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.",
        "units": {
          "USD": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": 39746000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2009-01-01",
              "end": "2009-06-30",
              "val": 29113000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2009-01-01",
              "end": "2009-09-30",
              "val": 39906000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 74165000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 74165000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-03-31",
              "val": 18645000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2010Q1"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 61241000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 61241000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 97004000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 97004000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 129529000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 129529000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 129529000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 17248000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 17248000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 15180000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2011Q1"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 46944000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 46944000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 41570000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 88479000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 82491000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 130469000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 130469000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 130469000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-30",
              "val": 7381000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 15424000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 7381000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 7381000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 42755000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 42755000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 83020000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 83020000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 133778000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 133778000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 133778000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 10418000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 10418000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 63726000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 63726000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 118864000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 118864000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 185976000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 185976000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 185976000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 17993000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 17993000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 87723000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 87723000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 155294000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 155294000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 226899000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 226899000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 226899000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 35645000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 35645000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 98585000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 98585000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 158642000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 158642000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 237997000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 237997000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 237997000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 30680000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 30680000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 106847000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 106847000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 166674000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 166674000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 247654000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 247654000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 247654000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 47621000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 47621000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 158088000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 158088000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 276213000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 276213000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 438539000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 438539000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 438539000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 77332000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 77332000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 217121000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 217121000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 313386000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 313386000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 554681000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 554681000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 554681000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 117207000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 117207000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 294561000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 294561000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 529093000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 529093000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 747270000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 747270000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 747270000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 9784000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 9784000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 69684000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 69684000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 280756000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 280756000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 662174000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 662174000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 662174000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 227187000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 227187000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 544691000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 544691000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 899695000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 899695000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 1172544000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 1172544000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 1172544000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 30498000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 30498000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 157543000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 157543000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 424025000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 424025000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 568732000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 568732000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 568732000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 199895000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 199895000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 451672000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 451672000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 738878000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 738878000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 785776000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 785776000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 785776000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 28664000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 28664000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 188491000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 188491000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 452153000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 452153000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 738231000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 738231000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 52676000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 52676000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 181326000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 181326000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 370046000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 593223000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": 151042000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": 343799000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            }
          ]
        }
      },
      "NetIncomeLoss": {
        "label": "Net Income (Loss) Attributable to Parent",
        "description": "The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.",
        "units": {
          "USD": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": 79987000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2009-01-01",
              "end": "2009-06-30",
              "val": 7181000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2009-04-01",
              "end": "2009-06-30",
              "val": 4545000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2009Q2"
            },
            {
              "start": "2009-01-01",
              "end": "2009-09-30",
              "val": -42761000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2009-07-01",
              "end": "2009-09-30",
              "val": -49942000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2009Q3"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": -31269000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": -31269000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-03-31",
              "val": 14930000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2010Q1"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 47533000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 47533000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2010-04-01",
              "end": "2010-06-30",
              "val": 32603000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-04-01",
              "end": "2010-06-30",
              "val": 32603000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2010Q2"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 64348000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 64348000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2010-07-01",
              "end": "2010-09-30",
              "val": 16815000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-07-01",
              "end": "2010-09-30",
              "val": 16815000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2010Q3"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 74253000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 74253000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 74253000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 15841000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 15841000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2011Q1"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 27003000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 27003000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2011-04-01",
              "end": "2011-06-30",
              "val": 11162000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-04-01",
              "end": "2011-06-30",
              "val": 11162000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2011Q2"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 46267000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 46267000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": 19264000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": 19264000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2011Q3"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 66716000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 66716000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 66716000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 20984000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 20984000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 49476000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 49476000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": 28492000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": 28492000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2012Q2"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 49132000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 49132000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": -344000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": -344000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2012Q3"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 58691000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 58691000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 58691000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": -41983000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": -41983000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": -12663000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": -12663000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-04-01",
              "end": "2013-06-30",
              "val": 29320000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-04-01",
              "end": "2013-06-30",
              "val": 29320000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2013Q2"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 21874000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 21874000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 34537000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 34537000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2013Q3"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 64295000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 64295000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 64295000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 32444000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 32444000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 68044000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 68044000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2014-04-01",
              "end": "2014-06-30",
              "val": 35600000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-04-01",
              "end": "2014-06-30",
              "val": 35600000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2014Q2"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 106291000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 106291000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": 38247000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": 38247000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2014Q3"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 145832000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 145832000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 145832000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 36177000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 36177000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 67527000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 67527000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2015-04-01",
              "end": "2015-06-30",
              "val": 31350000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-04-01",
              "end": "2015-06-30",
              "val": 31350000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2015Q2"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 95143000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 95143000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2015-07-01",
              "end": "2015-09-30",
              "val": 27616000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-07-01",
              "end": "2015-09-30",
              "val": 27616000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2015Q3"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 144020000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 144020000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 144020000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 40546000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 40546000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 90694000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 90694000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-04-01",
              "end": "2016-06-30",
              "val": 50148000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-04-01",
              "end": "2016-06-30",
              "val": 50148000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2016Q2"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 142061000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 142061000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": 51367000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": 51367000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2016Q3"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 189682000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 189682000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 189682000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 69420000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 69420000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 138599000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 138599000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-04-01",
              "end": "2017-06-30",
              "val": 69179000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-04-01",
              "end": "2017-06-30",
              "val": 69179000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2017Q2"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 221154000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 221154000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": 82555000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": 82555000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2017Q3"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 231418000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 231418000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 231418000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 95866000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 95866000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 201971000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 201971000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": 106105000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": 106105000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2018Q2"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 302843000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 302843000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 100872000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 100872000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2018Q3"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 400235000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 400235000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 400235000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 71848000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 71848000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 218990000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 218990000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 147142000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 147142000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2019Q2"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 321514000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 321514000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 102524000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 102524000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2019Q3"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 442776000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 442776000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 442776000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 1518131000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 1518131000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 1477529000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 1477529000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": -40602000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": -40602000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2020Q2"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 1616900000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 1616900000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 139371000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 139371000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2020Q3"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 1775888000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 1775888000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 1775888000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 200376000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 200376000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 400090000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 400090000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 199714000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 199714000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2021Q2"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 581059000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 581059000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 180969000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 180969000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2021Q3"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 772020000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 772020000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 772020000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 772000000,
              "accn": "0001097149-26-000023",
              "fy": null,
              "fp": null,
              "form": "DEF 14A",
              "filed": "2026-04-07",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 134298000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 134298000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 247098000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 247098000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": 112800000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": 112800000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2022Q2"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 319798000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 319798000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": 72700000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": 72700000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2022Q3"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 361573000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 361573000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 361573000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 362000000,
              "accn": "0001097149-26-000023",
              "fy": null,
              "fp": null,
              "form": "DEF 14A",
              "filed": "2026-04-07",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 87798000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 87798000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 199612000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 199612000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 111814000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 111814000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2023Q2"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 321039000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 321039000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 121427000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 121427000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2023Q3"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 445053000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 445053000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 445053000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 445000000,
              "accn": "0001097149-26-000023",
              "fy": null,
              "fp": null,
              "form": "DEF 14A",
              "filed": "2026-04-07",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 105028000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 105028000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 201592000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 201592000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 96564000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 96564000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2024Q2"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 317555000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 317555000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 115963000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 115963000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2024Q3"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 421362000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 421362000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 421000000,
              "accn": "0001097149-26-000023",
              "fy": null,
              "fp": null,
              "form": "DEF 14A",
              "filed": "2026-04-07",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 93230000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 93230000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 217838000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 217838000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 124608000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 124608000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q2"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 274591000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-07-01",
              "end": "2025-09-30",
              "val": 56753000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 410351000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 410000000,
              "accn": "0001097149-26-000023",
              "fy": null,
              "fp": null,
              "form": "DEF 14A",
              "filed": "2026-04-07",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": 112771000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": 221065000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2026-04-01",
              "end": "2026-06-30",
              "val": 108294000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2"
            }
          ]
        }
      },
      "NoncurrentAssets": {
        "label": "Long-Lived Assets",
        "description": "Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets.",
        "units": {
          "USD": [
            {
              "end": "2009-12-31",
              "val": 26940000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009Q4I"
            },
            {
              "end": "2010-12-31",
              "val": 34137000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2010-12-31",
              "val": 34137000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2010-12-31",
              "val": 34137000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2010-12-31",
              "val": 34137000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-06-30",
              "val": 39937000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 49141000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 56707000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 56707000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2011-12-31",
              "val": 56707000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "end": "2011-12-31",
              "val": 56707000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "end": "2011-12-31",
              "val": 56707000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2011-12-31",
              "val": 53965000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 65821000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 74971000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 77947000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 82645000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 79191000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "end": "2012-12-31",
              "val": 79191000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "end": "2012-12-31",
              "val": 79191000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "end": "2012-12-31",
              "val": 79191000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 72672000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 76932000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 76552000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 75743000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 75743000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "end": "2013-12-31",
              "val": 75743000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "end": "2013-12-31",
              "val": 75743000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "end": "2013-12-31",
              "val": 75743000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 79093000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 81312000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 86447000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 90125000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 90125000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2014-12-31",
              "val": 90125000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2014-12-31",
              "val": 90125000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "end": "2014-12-31",
              "val": 90125000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 99764000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 108029000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 120738000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 136473000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 136473000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2015-12-31",
              "val": 136473000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2015-12-31",
              "val": 136473000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "end": "2015-12-31",
              "val": 136473000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 148029000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 161685000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 172658000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 175167000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 175167000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "end": "2016-12-31",
              "val": 175167000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
              "val": 175167000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "end": "2016-12-31",
              "val": 175167000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 231692000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 255539000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 295901000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 348793000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 348793000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 348793000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 400528000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-12-31",
              "val": 521329000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 521329000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-12-31",
              "val": 687974000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 687974000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-12-31",
              "val": 817274000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 817274000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2020-12-31",
              "val": 817274000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2020-12-31",
              "val": 817274000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2020-12-31",
              "val": 817274000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 846305000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 1054277000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 1095496000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 1203183000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 1203183000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 1203183000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 1203183000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 1203183000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 1266174000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 1300356000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 1315911000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 1350735000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 1350735000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 1350735000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 1350735000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 1350735000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 1380704000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 1404923000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 1387354000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 1408862000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 1408862000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 1408862000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 1408862000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 1408862000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 1400705000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 1400000000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 1411506000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 1384510000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 1384510000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2024-12-31",
              "val": 1384510000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2024-12-31",
              "val": 1384510000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2024-12-31",
              "val": 1384510000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 1378026000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 1377583000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 1299592000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 1239775000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2025-12-31",
              "val": 1239775000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 1239775000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 1218315000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 1229625000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "NonoperatingIncomeExpense": {
        "label": "Nonoperating Income (Expense)",
        "description": "The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business).",
        "units": {
          "USD": [
            {
              "start": "2009-01-01",
              "end": "2009-06-30",
              "val": 705000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2009-04-01",
              "end": "2009-06-30",
              "val": 557000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2009Q2"
            },
            {
              "start": "2009-01-01",
              "end": "2009-09-30",
              "val": 434000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2009-07-01",
              "end": "2009-09-30",
              "val": -271000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2009Q3"
            },
            {
              "start": "2010-01-01",
              "end": "2010-03-31",
              "val": -553000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2010Q1"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": -397000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": -397000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2010-04-01",
              "end": "2010-06-30",
              "val": 156000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-04-01",
              "end": "2010-06-30",
              "val": 156000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2010Q2"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": -480000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": -480000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2010-07-01",
              "end": "2010-09-30",
              "val": -83000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-07-01",
              "end": "2010-09-30",
              "val": -83000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2010Q3"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 89000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 89000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2011Q1"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": -217000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": -217000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2011-04-01",
              "end": "2011-06-30",
              "val": -306000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-04-01",
              "end": "2011-06-30",
              "val": -306000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2011Q2"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": -335000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": -335000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": -118000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": -118000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2011Q3"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": -812000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": -812000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": -271000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": -271000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": 541000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": 541000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2012Q2"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": -624000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": -624000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": -353000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": -353000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2012Q3"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": -988000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": -988000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": -1323000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": -1323000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-04-01",
              "end": "2013-06-30",
              "val": -335000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-04-01",
              "end": "2013-06-30",
              "val": -335000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2013Q2"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": -874000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": -874000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 449000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 449000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2013Q3"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 601000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 601000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 508000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 508000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2014-04-01",
              "end": "2014-06-30",
              "val": -93000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-04-01",
              "end": "2014-06-30",
              "val": -93000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2014Q2"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": -1491000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": -1491000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": -1999000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": -1999000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2014Q3"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": -1452000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": -1452000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": -1278000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": -1278000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2015-04-01",
              "end": "2015-06-30",
              "val": 174000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-04-01",
              "end": "2015-06-30",
              "val": 174000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2015Q2"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": -2846000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": -2846000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2015-07-01",
              "end": "2015-09-30",
              "val": -1568000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-07-01",
              "end": "2015-09-30",
              "val": -1568000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2015Q3"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": -427000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": -427000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": -302000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": -302000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-04-01",
              "end": "2016-06-30",
              "val": 125000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-04-01",
              "end": "2016-06-30",
              "val": 125000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2016Q2"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 1161000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 1161000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": 1463000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": 1463000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2016Q3"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 1645000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 450000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 4857000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 2221000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-04-01",
              "end": "2017-06-30",
              "val": 3212000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-04-01",
              "end": "2017-06-30",
              "val": 1771000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2017Q2"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 8607000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 4145000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": 3750000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": 1924000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2017Q3"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 177000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 177000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": -6922000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": -6922000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": -7099000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": -7099000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2018Q2"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": -7759000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": -7759000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": -837000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": -837000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2018Q3"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": -8489000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": -5746000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": -5746000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 8146000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 8146000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 13892000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 13892000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2019Q2"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 5935000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 5935000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": -2211000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": -2211000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2019Q3"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 7676000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 7676000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": -18549000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": -18549000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": -19515000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": -19515000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": -966000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": -966000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2020Q2"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": -12368000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": -12368000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 7147000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 7147000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2020Q3"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": -11347000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": -11347000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": -11347000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 34532000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 34532000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 34049000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 34049000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": -483000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": -483000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2021Q2"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 34476000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 34476000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 427000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 427000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2021Q3"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 32920000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 32920000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 32920000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": -11273000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": -11273000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": -26105000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": -26105000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": -14832000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": -14832000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2022Q2"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": -48805000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": -48805000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": -22700000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": -22700000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2022Q3"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": -48905000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": -48905000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": -48905000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": -1229000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": -1229000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": -5992000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": -5992000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": -4763000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": -4763000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2023Q2"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": -15749000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": -15749000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": -9757000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": -9757000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2023Q3"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": -19392000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": -19392000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": -19392000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": -141000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": -141000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": -6622000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": -6622000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": -6481000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": -6481000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2024Q2"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": -6993000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": -6993000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": -371000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": -371000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2024Q3"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": -18887000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": -18887000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 4026000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 4026000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 11650000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 11650000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 7624000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 7624000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q2"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 6837000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-07-01",
              "end": "2025-09-30",
              "val": -4813000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 23487000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": 3020000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": -6936000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2026-04-01",
              "end": "2026-06-30",
              "val": -9956000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2"
            }
          ]
        }
      },
      "NotesAndLoansReceivableGrossCurrent": {
        "label": "Financing Receivable, before Allowance for Credit Loss, Current",
        "description": "Amount, before allowance for credit loss, of financing receivable, classified as current.",
        "units": {
          "USD": [
            {
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-06-30",
              "val": 26699000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 27101000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 25005000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 25005000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2019-12-31",
              "val": 25005000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2019-12-31",
              "val": 25005000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2019-12-31",
              "val": 25005000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 27914000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-06-30",
              "val": 21314000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 14552000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 5408000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2020Q4I"
            }
          ]
        }
      },
      "NumberOfOperatingSegments": {
        "label": "Number of Operating Segments",
        "description": "Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.",
        "units": {
          "segment": [
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 2,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 2,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 2,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 2,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 2,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 2,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 2,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 2,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 2,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 2,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 2,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 2,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 2,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 2,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            }
          ]
        }
      },
      "NumberOfReportableSegments": {
        "label": "Number of Reportable Segments",
        "description": "Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.",
        "units": {
          "Segment": [
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 2,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 2,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 2,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 2,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 2,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 2,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 2,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 2,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 2,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2020"
            }
          ],
          "segment": [
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 2,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 2,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 2,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 2,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 2,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 2,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 2,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 2,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 2,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 2,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 2,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 2,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 2,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 2,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 2,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 2,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 2,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 2,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 2,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 2,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 2,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 2,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 2,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 2,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 2,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 2,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 2,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 2,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 2,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 2,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 2,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 2,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 2,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 2,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 2,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 2,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 2,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 2,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 2,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 2,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 2,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 2,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 2,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 2,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 2,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": 2,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": 2,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            }
          ]
        }
      },
      "OperatingExpenses": {
        "label": "Operating Expenses",
        "description": "Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense.",
        "units": {
          "USD": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": 209612000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2009-01-01",
              "end": "2009-06-30",
              "val": 99148000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2009-04-01",
              "end": "2009-06-30",
              "val": 51725000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2009Q2"
            },
            {
              "start": "2009-01-01",
              "end": "2009-09-30",
              "val": 218343000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2009-07-01",
              "end": "2009-09-30",
              "val": 119195000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2009Q3"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 267504000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 267504000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-03-31",
              "val": 49013000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2010Q1"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 90687000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 90687000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2010-04-01",
              "end": "2010-06-30",
              "val": 41674000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-04-01",
              "end": "2010-06-30",
              "val": 41674000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2010Q2"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 143697000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 143697000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2010-07-01",
              "end": "2010-09-30",
              "val": 53010000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-07-01",
              "end": "2010-09-30",
              "val": 53010000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2010Q3"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 200683000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 200683000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 200683000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 61203000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 61203000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2011Q1"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 135745000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 135745000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2011-04-01",
              "end": "2011-06-30",
              "val": 74542000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-04-01",
              "end": "2011-06-30",
              "val": 74542000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2011Q2"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 201803000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 201803000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": 66058000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": 66058000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2011Q3"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 270923000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 270923000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 270923000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 72754000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 72754000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 145542000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 145542000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": 72788000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": 72788000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2012Q2"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 241389000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 241389000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 95847000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 95847000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2012Q3"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 330796000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 330796000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 330796000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 150924000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 150924000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 236714000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 236714000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-04-01",
              "end": "2013-06-30",
              "val": 85790000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-04-01",
              "end": "2013-06-30",
              "val": 85790000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2013Q2"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 320340000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 320340000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 83626000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 83626000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2013Q3"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 403894000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 403894000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 403894000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 95447000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 95447000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 192191000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 192191000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2014-04-01",
              "end": "2014-06-30",
              "val": 96744000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-04-01",
              "end": "2014-06-30",
              "val": 96744000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2014Q2"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 285698000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 285698000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": 93507000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": 93507000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2014Q3"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 384867000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 384867000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 384867000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 102166000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 102166000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 218475000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 218475000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2015-04-01",
              "end": "2015-06-30",
              "val": 116309000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-04-01",
              "end": "2015-06-30",
              "val": 116309000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2015Q2"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 338005000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 338005000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2015-07-01",
              "end": "2015-09-30",
              "val": 119530000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-07-01",
              "end": "2015-09-30",
              "val": 119530000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2015Q3"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 451476000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 451476000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 451476000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 127293000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 127293000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 267373000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 267373000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-04-01",
              "end": "2016-06-30",
              "val": 140080000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-04-01",
              "end": "2016-06-30",
              "val": 140080000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2016Q2"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 414496000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 414496000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": 147123000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": 147123000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2016Q3"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 566373000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 566373000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 566373000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 173952000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 173952000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 361300000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 361300000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-04-01",
              "end": "2017-06-30",
              "val": 187348000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-04-01",
              "end": "2017-06-30",
              "val": 187348000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2017Q2"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 555025000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 555025000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": 193725000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": 193725000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2017Q3"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 763336000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 763336000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 763336000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 229216000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 229216000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 472107000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 472107000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": 242891000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": 242891000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2018Q2"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 718680000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 718680000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 246573000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 246573000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2018Q3"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 981303000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 981303000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 981303000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 314395000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 314395000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 570194000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 570194000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 255799000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 255799000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2019Q2"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 880596000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 880596000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 310402000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 310402000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2019Q3"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 1201404000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 1201404000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 1201404000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 324438000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 324438000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 621766000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 621766000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": 297328000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": 297328000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2020Q2"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 978785000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 978785000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 357019000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 357019000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2020Q3"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 1376064000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 1376064000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 1376064000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 451652000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 451652000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 941288000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 941288000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 489636000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 489636000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2021Q2"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 1435284000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 1435284000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 493996000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 493996000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2021Q3"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 1958955000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 1958955000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 1958955000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 511264000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 511264000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 1010627000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 1010627000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": 499363000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": 499363000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2022Q2"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 1486140000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 1486140000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": 475513000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": 475513000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2022Q3"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 1991180000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 1991180000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 1991180000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 527138000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 527138000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 1068816000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 1068816000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 541678000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 541678000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2023Q2"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 1565546000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 1565546000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 496730000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 496730000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2023Q3"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 2063525000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 2063525000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 2063525000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 543681000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 543681000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 1119263000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 1119263000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 575582000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 575582000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2024Q2"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 1638739000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 1638739000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 519476000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 519476000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2024Q3"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 2191531000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 2191531000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 549008000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 549008000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 1094092000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 1094092000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 545084000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 545084000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q2"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 1636995000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-07-01",
              "end": "2025-09-30",
              "val": 542903000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 2165258000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": 594632000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": 1198049000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2026-04-01",
              "end": "2026-06-30",
              "val": 603417000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2"
            }
          ]
        }
      },
      "OperatingIncomeLoss": {
        "label": "Operating Income (Loss)",
        "description": "The net result for the period of deducting operating expenses from operating revenues.",
        "units": {
          "USD": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": 15514000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2009-01-01",
              "end": "2009-06-30",
              "val": 11537000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2009-04-01",
              "end": "2009-06-30",
              "val": 6253000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2009Q2"
            },
            {
              "start": "2009-01-01",
              "end": "2009-09-30",
              "val": -48657000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2009-07-01",
              "end": "2009-09-30",
              "val": -60194000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2009Q3"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": -34012000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": -34012000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-03-31",
              "val": 20697000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2010Q1"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 66041000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 66041000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2010-04-01",
              "end": "2010-06-30",
              "val": 45344000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-04-01",
              "end": "2010-06-30",
              "val": 45344000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2010Q2"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 87964000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 87964000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2010-07-01",
              "end": "2010-09-30",
              "val": 21923000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-07-01",
              "end": "2010-09-30",
              "val": 21923000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2010Q3"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 102734000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 102734000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 102734000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 21023000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 21023000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2011Q1"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 37618000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 37618000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2011-04-01",
              "end": "2011-06-30",
              "val": 16595000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-04-01",
              "end": "2011-06-30",
              "val": 16595000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2011Q2"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 63930000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 63930000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": 26312000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": 26312000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2011Q3"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 90360000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 90360000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 90360000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 28006000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 28006000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 64018000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 64018000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": 36012000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": 36012000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2012Q2"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 68521000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 68521000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 4503000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 4503000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2012Q3"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 85592000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 85592000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 85592000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": -38075000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": -38075000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": -174000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": -174000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-04-01",
              "end": "2013-06-30",
              "val": 37901000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-04-01",
              "end": "2013-06-30",
              "val": 37901000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2013Q2"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 41290000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 41290000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 41464000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 41464000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2013Q3"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 94212000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 94212000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 94212000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 41804000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 41804000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 90536000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 90536000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2014-04-01",
              "end": "2014-06-30",
              "val": 48732000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-04-01",
              "end": "2014-06-30",
              "val": 48732000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2014Q2"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 142083000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 142083000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": 51547000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": 51547000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2014Q3"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 193576000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 193576000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 193576000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 48924000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 48924000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 91249000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 91249000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2015-04-01",
              "end": "2015-06-30",
              "val": 42325000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-04-01",
              "end": "2015-06-30",
              "val": 42325000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2015Q2"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 129295000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 129295000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2015-07-01",
              "end": "2015-09-30",
              "val": 38046000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-07-01",
              "end": "2015-09-30",
              "val": 38046000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2015Q3"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 188634000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 188634000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 188634000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 53334000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 53334000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 118470000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 118470000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-04-01",
              "end": "2016-06-30",
              "val": 65136000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-04-01",
              "end": "2016-06-30",
              "val": 65136000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2016Q2"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 180549000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 180549000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": 62079000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": 62079000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2016Q3"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 248921000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 248921000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 248921000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 61673000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 61673000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 145242000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 145242000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-04-01",
              "end": "2017-06-30",
              "val": 83569000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-04-01",
              "end": "2017-06-30",
              "val": 83569000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2017Q2"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 244005000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 244005000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": 98763000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": 98763000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2017Q3"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 353611000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 353611000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 353611000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 98192000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 98192000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 220883000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 220883000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": 122691000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": 122691000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2018Q2"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 346091000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 346091000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 125208000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 125208000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2018Q3"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 466564000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 466564000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 466564000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 87701000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 87701000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 264191000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 264191000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 176490000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 176490000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2019Q2"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 391343000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 391343000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 127152000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 127152000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2019Q3"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 542493000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 542493000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 542493000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 69918000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 69918000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": -3082000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": -3082000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": -73000000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": -73000000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2020Q2"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 173987000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 173987000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 177069000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 177069000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2020Q3"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 387171000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 387171000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 387171000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 225446000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 225446000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 494348000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 494348000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 268902000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 268902000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2021Q2"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 755508000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 755508000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 261160000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 261160000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2021Q3"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 976400000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 976400000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 976400000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 198082000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 198082000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 386278000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 386278000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": 188196000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": 188196000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2022Q2"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 529934000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 529934000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": 143656000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": 143656000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2022Q3"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 642595000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 642595000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 642595000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 133516000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 133516000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 305447000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 305447000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 171931000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 171931000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2023Q2"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 471793000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 471793000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 166346000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 166346000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2023Q3"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 643338000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 643338000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 643338000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 154135000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 154135000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 301181000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 301181000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 147046000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 147046000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2024Q2"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 463479000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 463479000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 162298000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 162298000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2024Q3"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 607628000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 607628000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 131100000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 131100000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 294133000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 294133000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 163033000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 163033000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q2"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 390431000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-07-01",
              "end": "2025-09-30",
              "val": 96298000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 545755000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": 141955000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": 295968000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2026-04-01",
              "end": "2026-06-30",
              "val": 154013000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2"
            }
          ]
        }
      },
      "OperatingLeaseCost": {
        "label": "Operating Lease, Cost",
        "description": "Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.",
        "units": {
          "USD": [
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 5301000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 10799000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 5498000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 16756000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 5957000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 22778000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 22778000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 22778000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 27825000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 27825000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 27825000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 33241000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 33241000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 33241000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 37919000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 37919000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 37919000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 44614000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 44614000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 44614000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 42299000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 42299000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 43401000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            }
          ]
        }
      },
      "OperatingLeaseImpairmentLoss": {
        "label": "Operating Lease, Impairment Loss",
        "description": "Amount of loss from impairment of right-of-use asset from operating lease.",
        "units": {
          "USD": [
            {
              "end": "2019-03-05",
              "val": 14200000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2019-03-05",
              "val": 14200000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q1I"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 14200000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 14200000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 14200000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 14200000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 14200000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 14200000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 14200000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            }
          ]
        }
      },
      "OperatingLeaseLiability": {
        "label": "Operating Lease, Liability",
        "description": "Present value of lessee's discounted obligation for lease payments from operating lease.",
        "units": {
          "USD": [
            {
              "end": "2019-03-31",
              "val": 74899000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 75284000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 57071000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 59200000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-12-31",
              "val": 86180000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-12-31",
              "val": 125375000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-12-31",
              "val": 126908000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-12-31",
              "val": 126619000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-12-31",
              "val": 119277000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 114446000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025Q4I"
            }
          ]
        }
      },
      "OperatingLeaseLiabilityCurrent": {
        "label": "Operating Lease, Liability, Current",
        "description": "Present value of lessee's discounted obligation for lease payments from operating lease, classified as current.",
        "units": {
          "USD": [
            {
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 15592000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 16144000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 13706000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 15737000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 15737000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2019-12-31",
              "val": 15737000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2019-12-31",
              "val": 15737000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2019-12-31",
              "val": 15737000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 20225000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-06-30",
              "val": 20860000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 20674000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 21735000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 21735000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2020-12-31",
              "val": 21735000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2020-12-31",
              "val": 21735000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2020-12-31",
              "val": 21735000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 21513000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 22547000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 22170000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 22719000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 22719000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 22719000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 22719000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 22719000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 25243000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 24613000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 24173000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 26574000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 26574000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 26574000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 26574000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 26574000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 27776000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 28770000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 28277000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 29651000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 29651000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 29651000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 29651000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 29651000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 31324000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 30790000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 31168000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 31063000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 31063000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2024-12-31",
              "val": 31063000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2024-12-31",
              "val": 31063000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2024-12-31",
              "val": 31063000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 32048000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 32546000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 33993000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 31939000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2025-12-31",
              "val": 31939000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 31939000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 32622000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 34224000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "OperatingLeaseLiabilityNoncurrent": {
        "label": "Operating Lease, Liability, Noncurrent",
        "description": "Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent.",
        "units": {
          "USD": [
            {
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 59307000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 59140000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 43365000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 43463000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 43463000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2019-12-31",
              "val": 43463000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2019-12-31",
              "val": 43463000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2019-12-31",
              "val": 43463000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 53745000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-06-30",
              "val": 50619000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 65518000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 64445000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 64445000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2020-12-31",
              "val": 64445000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2020-12-31",
              "val": 64445000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2020-12-31",
              "val": 64445000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 63845000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 74184000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 74352000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 102656000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 102656000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 102656000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 102656000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 102656000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 104983000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 98332000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 96694000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 100334000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 100334000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 100334000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 100334000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 100334000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 99002000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 104650000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 98523000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 96968000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 96968000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 96968000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 96968000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 96968000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 95092000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 98301000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 96435000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 88214000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 88214000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2024-12-31",
              "val": 88214000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2024-12-31",
              "val": 88214000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2024-12-31",
              "val": 88214000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 86487000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 90474000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 87278000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 82507000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2025-12-31",
              "val": 82507000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 82507000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 83422000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 86618000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "OperatingLeasePayments": {
        "label": "Operating Lease, Payments",
        "description": "Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.",
        "units": {
          "USD": [
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 0,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 3820000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 3820000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 9020000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 9020000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 21186000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 21186000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 26337000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 26337000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 26337000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 6236000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 6236000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 12817000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 12817000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 19384000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 19384000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 26022000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 26022000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 26022000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 6923000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 6923000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 14030000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 14030000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 21626000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 21626000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 29769000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 29769000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 29769000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 7292000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 7292000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 15048000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 15048000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 23310000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 23310000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 31015000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 31015000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 31015000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 7871000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 7871000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 16152000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 16152000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 25559000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 25559000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 33714000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 33714000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 33714000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 9998000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 9998000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 19643000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 19643000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 29854000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 29854000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 39526000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 39526000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 9592000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 9592000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 19323000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 19323000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 29503000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 39856000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": 10498000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": 21076000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            }
          ]
        }
      },
      "OperatingLeaseRightOfUseAsset": {
        "label": "Operating Lease, Right-of-Use Asset",
        "description": "Amount of lessee's right to use underlying asset under operating lease.",
        "units": {
          "USD": [
            {
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 56384000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 57269000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 53923000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 56244000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 56244000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2019-12-31",
              "val": 56244000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2019-12-31",
              "val": 56244000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2019-12-31",
              "val": 56244000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 70366000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-06-30",
              "val": 68578000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 83386000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 82553000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 82553000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2020-12-31",
              "val": 82553000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2020-12-31",
              "val": 82553000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2020-12-31",
              "val": 82553000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 82435000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 93425000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 92727000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 121257000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 121257000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 121257000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 121257000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 121257000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 125252000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 117912000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 116031000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 118880000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 118880000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 118880000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 118880000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 118880000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 117889000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 125881000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 118966000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 117999000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 117999000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 117999000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 117999000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 117999000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 118996000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 122174000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 121079000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 113376000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 113376000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2024-12-31",
              "val": 113376000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2024-12-31",
              "val": 113376000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2024-12-31",
              "val": 113376000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 113179000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 116674000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 115038000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 108322000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2025-12-31",
              "val": 108322000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 108322000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 110223000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 115364000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "OperatingLeaseRightOfUseAssetAmortizationExpense": {
        "label": "Operating Lease, Right-of-Use Asset, Amortization Expense",
        "description": "Amount of amortization expense for right-of-use asset from operating lease.",
        "units": {
          "USD": [
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 18475000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 5546000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 11148000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 16819000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 22467000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 22467000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 5911000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 5911000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 12413000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 12413000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 19364000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 19364000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 26807000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 26807000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 26807000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 7526000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 7526000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 15075000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 15075000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 22756000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 22756000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 30520000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 30520000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 30520000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 7755000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 7755000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 15531000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 15531000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 24034000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 24034000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 33107000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 33107000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 33107000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 9612000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 9612000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 19040000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 19040000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 28603000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 28603000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 38438000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 38438000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 9457000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 9457000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 19457000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 19457000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 29504000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 39742000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": 10062000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": 20637000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            }
          ]
        }
      },
      "OperatingLeasesFutureMinimumPaymentsDue": {
        "label": "Operating Leases, Future Minimum Payments Due",
        "description": "Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.",
        "units": {
          "USD": [
            {
              "end": "2011-06-30",
              "val": 25186000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 24725000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 27900000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 32310000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 25935000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 31418000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 25718000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 23815000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 23942000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 30552000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 28273000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 29566000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 27352000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 24725000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 24046000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 24307000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 24118000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 21904000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 19750000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 19410000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 17342000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 32617000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 53921000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 52747000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 54080000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 56517000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 61555000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 66539000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 82248000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 92139000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 106676000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 106676000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 106676000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 106676000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 106676000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            }
          ]
        }
      },
      "OperatingLeasesFutureMinimumPaymentsDueCurrent": {
        "label": "Operating Leases, Future Minimum Payments Due, Next Twelve Months",
        "description": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "units": {
          "USD": [
            {
              "end": "2011-06-30",
              "val": 3303000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 1659000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 7177000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 6724000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 6016000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-12-31",
              "val": 7289000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-12-31",
              "val": 7878000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-12-31",
              "val": 9130000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 10236000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 12880000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 14799000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 21429000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 21429000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            }
          ]
        }
      },
      "OperatingLeasesFutureMinimumPaymentsDueInFiveYears": {
        "label": "Operating Leases, Future Minimum Payments, Due in Five Years",
        "description": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "units": {
          "USD": [
            {
              "end": "2011-06-30",
              "val": 3207000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 3206000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 4133000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-09-30",
              "val": 5703000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 2247000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 2245000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 2367000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 3948000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 1483000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 1539000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 1525000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 1490000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 209000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 188000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 529000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 529000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 326000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 335000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 334000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 3671000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 6247000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 6481000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 6703000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 7435000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 6027000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 7107000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 9617000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 12026000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 12400000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 12400000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 12400000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 12400000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 12400000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            }
          ]
        }
      },
      "OperatingLeasesFutureMinimumPaymentsDueInFourYears": {
        "label": "Operating Leases, Future Minimum Payments, Due in Four Years",
        "description": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "units": {
          "USD": [
            {
              "end": "2011-06-30",
              "val": 3523000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 3546000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 4087000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 5257000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 4612000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 5741000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 4758000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 4779000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 4921000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 6870000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 4316000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 4413000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 4471000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 4346000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 1545000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 2041000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 2345000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 2409000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 527000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 655000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 784000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 4161000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 6849000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 7133000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 7769000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 8503000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 8137000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 9270000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 11827000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 14386000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 15096000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 15096000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 15096000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 15096000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 15096000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            }
          ]
        }
      },
      "OperatingLeasesFutureMinimumPaymentsDueInThreeYears": {
        "label": "Operating Leases, Future Minimum Payments, Due in Three Years",
        "description": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "units": {
          "USD": [
            {
              "end": "2011-06-30",
              "val": 4566000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 4787000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 4190000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 5211000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 4569000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 6969000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 5037000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 5139000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 5500000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 7451000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 6708000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 7717000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 7770000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 7690000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 4659000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 5463000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 5885000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 5952000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 2475000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 2808000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 3020000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 6441000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 8466000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 8930000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 10217000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 11164000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 9759000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 11056000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 13503000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 15988000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 18897000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 18897000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 18897000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 18897000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 18897000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            }
          ]
        }
      },
      "OperatingLeasesFutureMinimumPaymentsDueInTwoYears": {
        "label": "Operating Leases, Future Minimum Payments, Due in Two Years",
        "description": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "units": {
          "USD": [
            {
              "end": "2011-06-30",
              "val": 5670000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 6193000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 5394000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 5388000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 4741000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 7713000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 6387000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 6421000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 7184000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 8239000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 7463000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 8437000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 8494000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 8480000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 8293000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 9194000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 9831000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 9982000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 6078000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 7126000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 7308000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 10258000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 10338000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 10920000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 12479000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 12785000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 13260000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 15061000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 17350000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 19131000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 20483000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 20483000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 20483000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 20483000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 20483000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            }
          ]
        }
      },
      "OperatingLeasesFutureMinimumPaymentsDueThereafter": {
        "label": "Operating Leases, Future Minimum Payments, Due Thereafter",
        "description": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "units": {
          "USD": [
            {
              "end": "2011-06-30",
              "val": 4917000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 5334000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 2919000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 3176000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 2217000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 3059000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 0,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-06-30",
              "val": 52000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 1755000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 425000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 500000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 494000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 437000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 210000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 188000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 438000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 438000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 108000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 111000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 109000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 4732000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 9141000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 9170000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 9274000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 13558000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 9573000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 10537000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 20738000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 25769000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 18371000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 18371000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 18371000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 18371000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 18371000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            }
          ]
        }
      },
      "OperatingLeasesFutureMinimumPaymentsRemainderOfFiscalYear": {
        "label": "Operating Leases, Future Minimum Payments, Remainder of Fiscal Year",
        "description": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the remainder of the fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "units": {
          "USD": [
            {
              "end": "2018-12-31",
              "val": 21429000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 21429000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 21429000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2018Q4I"
            }
          ]
        }
      },
      "OperatingLeasesRentExpenseNet": {
        "label": "Operating Leases, Rent Expense, Net",
        "description": "Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.",
        "units": {
          "USD": [
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 3800000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 4700000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 4700000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 6100000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 6100000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 6100000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 6900000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 6900000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 6900000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 7300000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 7300000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 7300000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 7600000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 7600000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 7600000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 8200000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 8200000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 8200000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 9900000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 9900000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 9900000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 13800000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 13800000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 16500000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2018"
            }
          ]
        }
      },
      "OperatingLeaseWeightedAverageDiscountRatePercent": {
        "label": "Operating Lease, Weighted Average Discount Rate, Percent",
        "description": "Weighted average discount rate for operating lease calculated at point in time.",
        "units": {
          "pure": [
            {
              "end": "2019-03-31",
              "val": 0.047,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 0.045,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 0.042,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 0.041,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 0.041,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-12-31",
              "val": 0.042,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 0.042,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-12-31",
              "val": 0.032,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 0.032,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-12-31",
              "val": 0.035,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 0.035,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-12-31",
              "val": 0.037,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 0.037,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-12-31",
              "val": 0.038,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 0.038,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 0.041,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025Q4I"
            }
          ]
        }
      },
      "OperatingLossCarryforwards": {
        "label": "Operating Loss Carryforwards",
        "description": "Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.",
        "units": {
          "USD": [
            {
              "end": "2016-06-30",
              "val": 31400000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q2I"
            }
          ]
        }
      },
      "OtherAccruedLiabilitiesCurrent": {
        "label": "Other Accrued Liabilities, Current",
        "description": "Amount of expenses incurred but not yet paid classified as other, due within one year or the normal operating cycle, if longer.",
        "units": {
          "USD": [
            {
              "end": "2010-12-31",
              "val": 5994000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2010-12-31",
              "val": 5994000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2010-12-31",
              "val": 2759000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-06-30",
              "val": 8500000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 8416000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 5178000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 4524000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2011-12-31",
              "val": 4524000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "end": "2011-12-31",
              "val": 4318000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "end": "2011-12-31",
              "val": 4524000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 5955000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 5912000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 5952000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 5540000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 3740000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "end": "2012-12-31",
              "val": 6878000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "end": "2012-12-31",
              "val": 7115000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "end": "2012-12-31",
              "val": 7115000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 4839000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 5517000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 6329000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 8143000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 6854000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "end": "2013-12-31",
              "val": 6854000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "end": "2013-12-31",
              "val": 6854000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "end": "2013-12-31",
              "val": 6854000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 7016000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 6769000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 10185000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 7320000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 7320000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2014-12-31",
              "val": 7320000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2014-12-31",
              "val": 7320000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "end": "2014-12-31",
              "val": 7320000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 7407000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 8189000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 11402000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 10084000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 10084000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2015-12-31",
              "val": 10084000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2015-12-31",
              "val": 23918000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "end": "2015-12-31",
              "val": 23918000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 11597000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 10595000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 23655000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 16119000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 16119000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "end": "2016-12-31",
              "val": 16119000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
              "val": 6278000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "end": "2016-12-31",
              "val": 6278000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 24125000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 27917000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 8742000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 22514000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 11152000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 5779000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 5779000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 5779000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 17112000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 10633000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 15147000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 8082000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 8082000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 8082000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 8082000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 56827000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 4071000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 4452000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 5975000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 60683000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 52499000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2019-12-31",
              "val": 55502000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2019-12-31",
              "val": 52499000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2019-12-31",
              "val": 62909000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 54196000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-06-30",
              "val": 42946000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 48320000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 78895000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 78895000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2020-12-31",
              "val": 88408000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2020-12-31",
              "val": 58278000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2020-12-31",
              "val": 58278000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 67011000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 77111000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 69206000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 75829000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 75829000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 109667000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 109667000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 107286000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 68842000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 73470000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 75263000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 83299000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 83299000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 83299000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 83299000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 83299000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 87455000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 93262000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 102369000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 108402000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 108402000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 108402000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 108402000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 108402000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 98865000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 132786000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 141448000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 152844000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 152844000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2024-12-31",
              "val": 152844000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2024-12-31",
              "val": 152844000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2024-12-31",
              "val": 152844000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 147957000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 160046000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 157444000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 133153000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2025-12-31",
              "val": 120908000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 120908000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 115607000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 95040000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "OtherAssetsCurrent": {
        "label": "Other Assets, Current",
        "description": "Amount of current assets classified as other.",
        "units": {
          "USD": [
            {
              "end": "2018-12-31",
              "val": 23227000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 23227000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 6511000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-06-30",
              "val": 18968000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 21052000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 4428000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 24637000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2019-12-31",
              "val": 29065000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2019-12-31",
              "val": 29065000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2019-12-31",
              "val": 24417000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 19624000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-06-30",
              "val": 24957000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 25264000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 20986000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 61685000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-12-31",
              "val": 125087000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 31477000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 31477000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 31477000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 31477000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 32329000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 62649000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 46646000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 16762000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 16762000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 16762000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 16762000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 16762000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 22509000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 22708000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 34156000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 77335000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 77335000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 77335000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 77335000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 77335000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 70492000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 70525000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 68844000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 81576000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 81576000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2024-12-31",
              "val": 81576000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2024-12-31",
              "val": 81576000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2024-12-31",
              "val": 81576000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 83225000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 57074000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 57040000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 47274000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2025-12-31",
              "val": 47274000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 47274000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 57059000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 52187000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "OtherAssetsNoncurrent": {
        "label": "Other Assets, Noncurrent",
        "description": "Amount of noncurrent assets classified as other.",
        "units": {
          "USD": [
            {
              "end": "2009-12-31",
              "val": 1969000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "end": "2009-12-31",
              "val": 1969000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "end": "2009-12-31",
              "val": 1969000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2009Q4I"
            },
            {
              "end": "2010-06-30",
              "val": 2109000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2010Q2I"
            },
            {
              "end": "2010-09-30",
              "val": 4218000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2010Q3I"
            },
            {
              "end": "2010-12-31",
              "val": 3454000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "end": "2010-12-31",
              "val": 3454000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "end": "2010-12-31",
              "val": 3454000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2010-12-31",
              "val": 3454000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2010-12-31",
              "val": 3454000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-03-31",
              "val": 2714000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2011Q1I"
            },
            {
              "end": "2011-06-30",
              "val": 2815000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 2754000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 2741000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 2741000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2011-12-31",
              "val": 2741000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "end": "2011-12-31",
              "val": 2741000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "end": "2011-12-31",
              "val": 2741000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 2909000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 2765000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 2700000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 3454000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 3454000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "end": "2012-12-31",
              "val": 3454000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "end": "2012-12-31",
              "val": 3454000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "end": "2012-12-31",
              "val": 3454000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 3173000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 4674000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 8630000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 8622000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 8622000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "end": "2013-12-31",
              "val": 8622000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "end": "2013-12-31",
              "val": 8622000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "end": "2013-12-31",
              "val": 8622000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 8315000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 8210000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 7513000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 7665000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 7665000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2014-12-31",
              "val": 7665000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2014-12-31",
              "val": 7665000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "end": "2014-12-31",
              "val": 7665000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 7254000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 7881000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 7588000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 8202000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 8202000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2015-12-31",
              "val": 8202000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2015-12-31",
              "val": 8202000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "end": "2015-12-31",
              "val": 8202000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 7705000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 7223000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 13474000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 13320000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 13320000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "end": "2016-12-31",
              "val": 13320000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
              "val": 13320000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "end": "2016-12-31",
              "val": 13320000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 14405000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 22992000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 25400000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 38379000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 43893000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 43893000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 43893000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 43893000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 17233000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 19302000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 25464000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 26987000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 26987000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 26987000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 26987000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 26987000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 26186000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 48892000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 44135000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 39610000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 39610000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2019-12-31",
              "val": 39610000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2019-12-31",
              "val": 39610000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2019-12-31",
              "val": 39610000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 29566000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-06-30",
              "val": 27580000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 32628000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 35151000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 35151000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2020-12-31",
              "val": 35151000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2020-12-31",
              "val": 35151000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2020-12-31",
              "val": 35151000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 37960000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 47281000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 54668000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 57509000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 57509000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 57509000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 57509000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 57509000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 57693000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 52843000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 52144000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 55826000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 55826000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 55826000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 55826000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 55826000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 54301000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 138161000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 132429000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 128682000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 128682000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 128682000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 128682000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 128682000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 121831000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 197898000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 199714000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 234159000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 234159000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2024-12-31",
              "val": 234159000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2024-12-31",
              "val": 234159000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2024-12-31",
              "val": 234159000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 238925000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 250667000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 254054000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 278048000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2025-12-31",
              "val": 278048000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 278048000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 365144000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 452815000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "OtherComprehensiveIncomeAvailableForSaleSecuritiesAdjustmentNetOfTaxPeriodIncreaseDecrease": {
        "label": "Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax (Deprecated 2012-01-31)",
        "description": "Gross appreciation or the gross loss in value of the total unsold securities. While for technical reasons this element has no balance attribute, the default assumption is a credit balance consistent with its label.",
        "units": {
          "USD": [
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 7000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2011Q1"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 23000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2011-04-01",
              "end": "2011-06-30",
              "val": 16000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2011Q2"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": -12000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": -25000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": -12000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2"
            }
          ]
        }
      },
      "OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent": {
        "label": "Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax, Portion Attributable to Parent",
        "description": "Amount after tax and reclassification adjustments, of appreciation (loss) in value of unsold available-for-sale securities, attributable to parent entity. Excludes amounts related to other than temporary impairment (OTTI) loss.",
        "units": {
          "USD": [
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 168000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": -2000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2010-04-01",
              "end": "2010-06-30",
              "val": -4000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2010Q2"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": -18000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2010-07-01",
              "end": "2010-09-30",
              "val": -18000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2010Q3"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": -302000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": -302000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 23000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-04-01",
              "end": "2011-06-30",
              "val": 16000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 211000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": -375000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": -98000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": -98000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": -98000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 28000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 28000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 28000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 29000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 29000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 29000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": -238000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": -238000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": -238000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": -686000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": -686000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": -686000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 712000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 712000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 712000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": -232000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": -232000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": -232000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 286000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 286000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 299000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019"
            }
          ]
        }
      },
      "OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPeriodIncreaseDecrease": {
        "label": "Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax (Deprecated 2012-01-31)",
        "description": "Adjustment that results from the process of translating subsidiary financial statements and foreign equity investments into the reporting currency of the reporting entity, net of tax.",
        "units": {
          "USD": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": -421000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 168000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 168000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": -302000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": -302000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 483000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2011Q1"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 586000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2011-04-01",
              "end": "2011-06-30",
              "val": 103000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2011Q2"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": -98000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 159000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": -361000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": -521000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2"
            }
          ]
        }
      },
      "OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent": {
        "label": "Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent",
        "description": "Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature, attributable to parent entity.",
        "units": {
          "USD": [
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 18000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": -702000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2010-04-01",
              "end": "2010-06-30",
              "val": -354000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2010Q2"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": -120000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2010-07-01",
              "end": "2010-09-30",
              "val": 585000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2010Q3"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": -19000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 586000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-04-01",
              "end": "2011-06-30",
              "val": 103000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 1000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": -23000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 10000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011"
            }
          ]
        }
      },
      "OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax": {
        "label": "Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax",
        "description": "Amount after tax, before reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.",
        "units": {
          "USD": [
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": -19000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 10000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 10000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 129000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 129000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 129000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 62000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 62000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 62000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": -196000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": -196000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": -196000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": -154000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": -154000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": -154000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": -670000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": -670000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 1741000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2017"
            }
          ]
        }
      },
      "OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax": {
        "label": "OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment and Tax",
        "description": "Amount, after tax and adjustment, of unrealized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale) and unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale.",
        "units": {
          "USD": [
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 1000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": -23000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2011Q3"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": -12000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": -25000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": -12000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2012Q2"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 43000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 43000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 73000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 73000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2012Q3"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 3000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 3000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": -183000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": -183000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-04-01",
              "end": "2013-06-30",
              "val": -186000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-04-01",
              "end": "2013-06-30",
              "val": -186000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2013Q2"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 20000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 20000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 203000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 203000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2013Q3"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 42000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 42000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 112000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 112000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2014-04-01",
              "end": "2014-06-30",
              "val": 70000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-04-01",
              "end": "2014-06-30",
              "val": 70000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2014Q2"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": -81000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": -81000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": -191000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": -191000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2014Q3"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 295000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 295000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 162000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 162000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2015-04-01",
              "end": "2015-06-30",
              "val": -133000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-04-01",
              "end": "2015-06-30",
              "val": -133000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2015Q2"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 260000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 260000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2015-07-01",
              "end": "2015-09-30",
              "val": 98000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-07-01",
              "end": "2015-09-30",
              "val": 98000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2015Q3"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 1152000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 1152000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 1475000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 1475000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-04-01",
              "end": "2016-06-30",
              "val": 323000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-04-01",
              "end": "2016-06-30",
              "val": 323000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2016Q2"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 1038000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 1038000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": -437000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": -437000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2016Q3"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 15000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 15000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 42000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 42000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-04-01",
              "end": "2017-06-30",
              "val": 27000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-04-01",
              "end": "2017-06-30",
              "val": 27000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2017Q2"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 102000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 102000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": 60000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": 60000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2017Q3"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": -129000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": -129000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": -57000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 57000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": -186000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": 186000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2018Q2"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 174000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 174000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 117000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 117000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2018Q3"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 84000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 84000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 276000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 276000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 192000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 192000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2019Q2"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 317000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 317000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 41000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 41000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2019Q3"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": -194000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": -194000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": -194000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": 0,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": 0,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2020Q2"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": -194000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": -194000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 0,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 0,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2020Q3"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": -20000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 0,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 0,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 20000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3"
            }
          ]
        }
      },
      "OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax": {
        "label": "Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax",
        "description": "Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.",
        "units": {
          "USD": [
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": -302000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 211000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": -375000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2011Q3"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": -98000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": -98000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 159000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": -361000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": -521000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2012Q2"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": -108000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": -108000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 248000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 248000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2012Q3"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 129000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 129000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 129000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": -55000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": -55000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": -64000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": -64000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-04-01",
              "end": "2013-06-30",
              "val": -8000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-04-01",
              "end": "2013-06-30",
              "val": -8000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2013Q2"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 109000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 109000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 171000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 171000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2013Q3"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 62000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 62000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 62000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 106000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 106000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 102000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 102000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2014-04-01",
              "end": "2014-06-30",
              "val": -4000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-04-01",
              "end": "2014-06-30",
              "val": -4000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2014Q2"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": -155000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": -155000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": -257000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": -257000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2014Q3"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": -196000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": -196000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": -196000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": -261000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": -261000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": -209000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": -209000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2015-04-01",
              "end": "2015-06-30",
              "val": 52000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-04-01",
              "end": "2015-06-30",
              "val": 52000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2015Q2"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": -95000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": -95000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2015-07-01",
              "end": "2015-09-30",
              "val": 114000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-07-01",
              "end": "2015-09-30",
              "val": 114000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2015Q3"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": -164000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": -164000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": -164000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": -150000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": -150000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": -67000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": -67000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-04-01",
              "end": "2016-06-30",
              "val": 83000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-04-01",
              "end": "2016-06-30",
              "val": 83000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2016Q2"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": -143000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": -143000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": -76000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": -76000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2016Q3"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": -670000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": -670000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": -670000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": -459000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": -459000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 740000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 740000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-04-01",
              "end": "2017-06-30",
              "val": 1199000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-04-01",
              "end": "2017-06-30",
              "val": 1199000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2017Q2"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 1624000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 1624000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": 884000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": 884000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2017Q3"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 1741000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 1741000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 1741000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 1042000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 1042000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": -283000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 283000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": 759000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": -759000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2018Q2"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": -1473000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": -1473000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": -1756000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": -1756000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2018Q3"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": -3631000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": -3631000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": -3631000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 409000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 409000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 622000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 622000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 213000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 213000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2019Q2"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 530000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 530000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": -92000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": -92000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2019Q3"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 1787000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 1787000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 1787000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 689000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 689000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 9983000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 9983000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": 9294000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": 9294000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2020Q2"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 25793000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 25793000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 15810000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 15810000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2020Q3"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 44383000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 44383000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 44383000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": -14451000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": -14451000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": -13865000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": -13865000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 586000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 586000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2021Q2"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": -25902000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": -25902000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": -12037000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": -12037000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2021Q3"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": -38680000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": -38680000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": -38680000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": -7311000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": -7311000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": -21067000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": -21067000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": -13756000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": -13756000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2022Q2"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": -41313000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": -41313000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": -20246000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": -20246000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2022Q3"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": -11480000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": -11480000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": -11480000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 10474000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 10474000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 19632000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 19632000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 9158000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 9158000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2023Q2"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 9810000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 9810000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": -9822000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": -9822000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2023Q3"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 28419000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 28419000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 28419000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": -2932000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": -2932000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 3427000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 3427000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 6359000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 6359000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2024Q2"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 14140000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 14140000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 10713000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 10713000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2024Q3"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": -15786000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": -15786000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 12199000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 12199000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 55209000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 55209000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 43010000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 43010000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q2"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 59394000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-07-01",
              "end": "2025-09-30",
              "val": 4185000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 69410000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": -5295000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": -8802000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2026-04-01",
              "end": "2026-06-30",
              "val": -3507000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2"
            }
          ]
        }
      },
      "OtherComprehensiveIncomeLossNetOfTax": {
        "label": "Other Comprehensive Income (Loss), Net of Tax",
        "description": "Amount after tax and reclassification adjustments of other comprehensive income (loss).",
        "units": {
          "USD": [
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 212000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": -398000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2011Q3"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 147000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": -386000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": -533000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2012Q2"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": -65000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": -65000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 321000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 321000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2012Q3"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": -52000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": -52000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": -247000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": -247000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-04-01",
              "end": "2013-06-30",
              "val": -194000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-04-01",
              "end": "2013-06-30",
              "val": -194000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2013Q2"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 129000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 129000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 374000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 374000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2013Q3"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 148000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 148000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 214000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 214000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2014-04-01",
              "end": "2014-06-30",
              "val": 66000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-04-01",
              "end": "2014-06-30",
              "val": 66000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2014Q2"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": -236000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": -236000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": -448000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": -448000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2014Q3"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 34000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 34000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": -47000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": -47000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2015-04-01",
              "end": "2015-06-30",
              "val": -81000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-04-01",
              "end": "2015-06-30",
              "val": -81000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2015Q2"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 165000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 165000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2015-07-01",
              "end": "2015-09-30",
              "val": 212000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-07-01",
              "end": "2015-09-30",
              "val": 212000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2015Q3"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 1002000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 1002000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 1408000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 1408000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-04-01",
              "end": "2016-06-30",
              "val": 406000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-04-01",
              "end": "2016-06-30",
              "val": 406000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2016Q2"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 895000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 895000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": -513000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": -513000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2016Q3"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": -444000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": -444000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 782000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 782000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-04-01",
              "end": "2017-06-30",
              "val": 1226000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-04-01",
              "end": "2017-06-30",
              "val": 1226000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2017Q2"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 1726000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 1726000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": 944000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": 944000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2017Q3"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 913000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 913000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": -340000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 340000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": 573000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": -573000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2018Q2"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": -1299000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": -1299000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": -1639000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": -1639000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2018Q3"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 493000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 493000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 898000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 898000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 405000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 405000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2019Q2"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 847000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 847000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": -51000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": -51000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2019Q3"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 495000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 9789000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": 9294000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 25599000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 15810000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3"
            }
          ]
        }
      },
      "OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecrease": {
        "label": "Other Comprehensive Income (Loss), Net of Tax (Deprecated 2012-01-31)",
        "description": "This element represents Other Comprehensive Income or Loss, Net of Tax, for the period. Includes deferred gains or losses on qualifying hedges, unrealized holding gains or losses on available-for-sale securities, minimum pension liability, and cumulative translation adjustment. While for technical reasons this element has no balance attribute, the default assumption is a credit balance consistent with its label.",
        "units": {
          "USD": [
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 490000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2011Q1"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 609000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2011-04-01",
              "end": "2011-06-30",
              "val": 119000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2011Q2"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 147000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": -386000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": -533000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2"
            }
          ]
        }
      },
      "OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent": {
        "label": "Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent",
        "description": "Amount after tax of other comprehensive income (loss) attributable to parent entity.",
        "units": {
          "USD": [
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": -321000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": -88000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": -88000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 157000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 157000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 157000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 91000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 91000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 91000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": -434000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": -434000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": -434000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": -840000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": -840000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": -840000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 42000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 42000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 42000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 1509000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 1509000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 1509000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": -3345000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": -3345000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": -3345000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 2086000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 2086000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 2086000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 495000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 9789000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": 9294000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2020Q2"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 25599000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 15810000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2020Q3"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 44189000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 44189000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 44189000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": -14471000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": -14471000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": -13885000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": -13885000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 586000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 586000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2021Q2"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": -25902000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": -25902000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": -12017000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": -12017000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2021Q3"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": -39175000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": -39175000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": -39175000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": -10039000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": -10039000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": -24096000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": -24096000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": -14057000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": -14057000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2022Q2"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": -45071000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": -45071000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": -20975000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": -20975000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2022Q3"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": -14610000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": -14610000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": -14610000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 12119000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 12119000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 21627000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 21627000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 9508000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 9508000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2023Q2"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 12331000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 12331000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": -9296000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": -9296000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2023Q3"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 31452000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 31452000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 31452000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": -2729000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": -2729000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 3873000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 3873000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 6602000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 6602000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2024Q2"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 14745000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 14745000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 10872000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 10872000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2024Q3"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": -15190000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": -15190000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 12199000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 12199000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 55209000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 55209000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 43010000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 43010000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q2"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 59394000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-07-01",
              "end": "2025-09-30",
              "val": 4185000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 69410000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": -5295000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": -8802000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2026-04-01",
              "end": "2026-06-30",
              "val": -3507000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2"
            }
          ]
        }
      },
      "OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax": {
        "label": "OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, after Tax",
        "description": "Amount, after tax and before adjustment, of unrealized holding gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Excludes unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale.",
        "units": {
          "USD": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": 33000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 18000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 18000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": -19000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": -19000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": -19000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 10000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 10000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 10000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 28000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 28000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 28000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 29000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 29000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 29000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": -238000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": -238000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": -238000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": -686000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": -686000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": -686000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 712000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 712000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 712000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": -232000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": -232000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": -232000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": -129000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 57000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": 186000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2018Q2"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 174000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 117000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2018Q3"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 286000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 286000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 286000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 84000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 84000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 276000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 276000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 192000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 192000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2019Q2"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 317000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 317000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 41000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 41000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2019Q3"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 299000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 299000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 299000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": -194000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": -194000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": -194000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": -194000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": -194000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": -194000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": -194000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": -194000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": -194000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": -20000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": -20000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": -20000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": -20000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 0,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2021Q2"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 0,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 20000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 20000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2021Q3"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": -495000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": -495000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": -495000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": -2728000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": -2728000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": -3029000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": -3029000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": -301000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": -301000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2022Q2"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": -3758000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": -3758000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": -729000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": -729000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2022Q3"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": -3130000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": -3130000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": -3130000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 1645000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 1645000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 1995000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 1995000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 350000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 350000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2023Q2"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 2521000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 2521000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 526000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 526000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2023Q3"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 3033000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 3033000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 3033000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 203000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 203000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 446000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 446000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 243000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 243000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2024Q2"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 605000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 605000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 159000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 159000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2024Q3"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 596000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 596000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 0,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 0,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 0,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 0,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-07-01",
              "end": "2025-09-30",
              "val": 0,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 0,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            }
          ]
        }
      },
      "OtherCostOfOperatingRevenue": {
        "label": "Other Cost of Operating Revenue",
        "description": "Other costs incurred during the reporting period related to other revenue generating activities.",
        "units": {
          "USD": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": 9314000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2009-01-01",
              "end": "2009-06-30",
              "val": 3975000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2009-04-01",
              "end": "2009-06-30",
              "val": 1941000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2009Q2"
            },
            {
              "start": "2009-01-01",
              "end": "2009-09-30",
              "val": 5753000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2009-07-01",
              "end": "2009-09-30",
              "val": 1777000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2009Q3"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 7311000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-03-31",
              "val": 1773000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2010Q1"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 4670000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-04-01",
              "end": "2010-06-30",
              "val": 2595000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2010Q2"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 6594000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-07-01",
              "end": "2010-09-30",
              "val": 1924000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2010Q3"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 9291000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 1637000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2011Q1"
            }
          ]
        }
      },
      "OtherLiabilitiesNoncurrent": {
        "label": "Other Liabilities, Noncurrent",
        "description": "Amount of liabilities classified as other, due after one year or the normal operating cycle, if longer.",
        "units": {
          "USD": [
            {
              "end": "2009-12-31",
              "val": 961000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "end": "2009-12-31",
              "val": 961000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "end": "2009-12-31",
              "val": 961000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2009Q4I"
            },
            {
              "end": "2010-06-30",
              "val": 932000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2010Q2I"
            },
            {
              "end": "2010-09-30",
              "val": 5797000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2010Q3I"
            },
            {
              "end": "2010-12-31",
              "val": 6222000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "end": "2010-12-31",
              "val": 6222000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "end": "2010-12-31",
              "val": 6222000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2010-12-31",
              "val": 6222000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2010-12-31",
              "val": 6222000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-03-31",
              "val": 6883000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2011Q1I"
            },
            {
              "end": "2011-06-30",
              "val": 7816000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 8857000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 10366000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 10366000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2011-12-31",
              "val": 10366000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "end": "2011-12-31",
              "val": 10366000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "end": "2011-12-31",
              "val": 10366000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 11586000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 14032000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 14311000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 19224000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 19224000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "end": "2012-12-31",
              "val": 19224000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "end": "2012-12-31",
              "val": 19224000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "end": "2012-12-31",
              "val": 19224000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 21272000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 23042000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 20254000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 22839000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 22839000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "end": "2013-12-31",
              "val": 22839000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "end": "2013-12-31",
              "val": 22839000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "end": "2013-12-31",
              "val": 4513000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 18033000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 22524000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 27273000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 2932000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 2932000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2014-12-31",
              "val": 2932000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2014-12-31",
              "val": 2932000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "end": "2014-12-31",
              "val": 2932000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 2465000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 2129000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 1876000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 1523000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 1523000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2015-12-31",
              "val": 1523000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2015-12-31",
              "val": 1523000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "end": "2015-12-31",
              "val": 1523000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 1511000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 1182000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 993000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 1294000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 1294000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "end": "2016-12-31",
              "val": 1294000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
              "val": 1294000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "end": "2016-12-31",
              "val": 1294000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 2542000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 3522000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 8921000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 15579000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 15579000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 15579000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 15579000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 15579000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 17937000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 15283000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 21558000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 29486000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 29486000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 29486000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 29486000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 29486000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 21072000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 25967000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 29408000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 37306000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 37306000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2019-12-31",
              "val": 37306000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2019-12-31",
              "val": 37306000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2019-12-31",
              "val": 37306000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 38292000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-06-30",
              "val": 73344000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 85639000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 100024000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 100024000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2020-12-31",
              "val": 100024000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2020-12-31",
              "val": 100024000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2020-12-31",
              "val": 100024000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 108851000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 127087000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 142694000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 174597000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 174597000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 174597000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 174597000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 174597000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 184456000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 191878000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 185024000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 195975000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 195975000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 195975000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 195975000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 195975000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 191258000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 181225000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 178733000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 173065000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 173065000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 173065000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 173065000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 173065000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 156447000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 158215000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 150014000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 139908000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 139908000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2024-12-31",
              "val": 139908000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2024-12-31",
              "val": 139908000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2024-12-31",
              "val": 139908000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 131361000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 116800000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 111755000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 113824000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2025-12-31",
              "val": 113824000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 113824000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 108192000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 119949000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "OtherNoncashIncomeExpense": {
        "label": "Other Noncash Income (Expense)",
        "description": "Amount of income (expense) included in net income that results in no cash inflow (outflow), classified as other.",
        "units": {
          "USD": [
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": -256000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 156000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": -118000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": -2572000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": -52000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": -74000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": -848000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": -80000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": -1989000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": -4517000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": -4517000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 10000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 444000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 13000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": -389000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 0,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": -1200000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": -4142000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": -4142000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": -4142000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": -1977000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": -1977000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": -5095000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": -5095000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": -7368000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": -7368000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": -10106000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": -10106000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": -10106000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": -2614000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": -2614000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": -6162000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": -6162000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": -9252000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": -9252000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": -13799000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": -13799000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": -13799000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": -3754000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": -3754000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": -7041000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": -7041000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": -9525000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": -9525000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": -12031000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": -12031000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": -12031000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": -2079000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": -2079000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": -5837000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": -5837000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": -9432000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": -9432000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": -13847000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": -13847000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": -13847000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": -474000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": -474000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": -4543000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": -4543000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": -11363000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": -11363000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": -17252000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": -17252000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": -16382000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": -5101000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": -5101000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": -12788000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": -9548000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": -17426000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": -13342000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": -29860000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": -20032000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": -24007000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": -12566000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": -7728000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": -11542000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": -11542000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": -10402000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": -14189000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": -15783000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": -21670000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": -33743000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": -5340000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": -5795000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": -12345000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": -13174000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": -14092000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": -15651000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": -21549000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": -24363000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": -24363000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": -8612000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": -8612000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": -16172000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": -16172000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": -26216000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": -26216000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": -41288000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": -41288000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": -41288000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": -11586000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": -11586000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": -21860000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": -21860000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": -28435000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": -28435000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": -32733000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": -32733000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": -32733000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 2359000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 2359000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": -2377000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": -2377000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": -6931000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": -6931000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": -12256000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": -12256000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": -2950000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": -2950000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": -7593000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": -7593000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": -29349000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": -37686000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": -7309000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": -10633000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            }
          ]
        }
      },
      "OtherNonoperatingExpense": {
        "label": "Other Nonoperating Expense",
        "description": "Amount of expense related to nonoperating activities, classified as other.",
        "units": {
          "USD": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": 1466000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 375000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 375000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 1267000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 1267000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 920000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011"
            }
          ]
        }
      },
      "OtherNonoperatingIncomeExpense": {
        "label": "Other Nonoperating Income (Expense)",
        "description": "Amount of income (expense) related to nonoperating activities, classified as other.",
        "units": {
          "USD": [
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": -1286000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": -971000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": -419000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": -2053000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": -1296000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": -1296000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": -1073000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": -1073000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": -1073000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": -3207000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": -3207000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": -3207000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": -2533000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": -2533000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": -2533000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": -6355000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": -6355000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": -10568000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 11188000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 4240000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 4240000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": -8489000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": -8489000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 7676000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019"
            }
          ]
        }
      },
      "OtherReceivablesNetCurrent": {
        "label": "Other Receivables, Net, Current",
        "description": "Amount, after allowance, of receivables classified as other, due within one year or the operating cycle, if longer.",
        "units": {
          "USD": [
            {
              "end": "2018-12-31",
              "val": 6511000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 6511000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 23227000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-06-30",
              "val": 18826000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 2283000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 24637000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 4428000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 4262000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            }
          ]
        }
      },
      "OtherSalesRevenueNet": {
        "label": "Other Revenue, Net (Deprecated 2018-01-31)",
        "description": "Amount, after sales adjustments, returns, allowances, and discounts, of revenue classified as other.",
        "units": {
          "USD": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": 18178000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2009-01-01",
              "end": "2009-06-30",
              "val": 8790000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2009-04-01",
              "end": "2009-06-30",
              "val": 4928000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2009Q2"
            },
            {
              "start": "2009-01-01",
              "end": "2009-09-30",
              "val": 12969000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2009-07-01",
              "end": "2009-09-30",
              "val": 4177000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2009Q3"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 17118000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-03-31",
              "val": 4668000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2010Q1"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 10043000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-04-01",
              "end": "2010-06-30",
              "val": 5375000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2010Q2"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 14820000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-07-01",
              "end": "2010-09-30",
              "val": 4777000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2010Q3"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 20171000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 5419000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2011Q1"
            }
          ]
        }
      },
      "OtherSignificantNoncashTransactionValueOfConsiderationGiven1": {
        "label": "Other Significant Noncash Transaction, Value of Consideration Given",
        "description": "\"The value of the noncash (or part noncash) consideration given (for example, liability, equity) in a transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. \"\"Part noncash\"\" refers to that portion of a transaction not resulting in cash receipts or cash payments in the period.\"",
        "units": {
          "USD": [
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 63518000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            }
          ]
        }
      },
      "OtherSundryLiabilitiesCurrent": {
        "label": "Other Sundry Liabilities, Current",
        "description": "Obligations not otherwise itemized or categorized in the footnotes to the financial statements that are due within one year or operating cycle, if longer, from the balance sheet date.",
        "units": {
          "USD": [
            {
              "end": "2020-12-31",
              "val": 42536000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2020-12-31",
              "val": 42536000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-09-30",
              "val": 62828000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 67169000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 67169000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 67169000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 67169000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 67169000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 66211000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 74281000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 66859000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 64341000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 64341000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 64341000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 64341000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 64341000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 51212000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 63004000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 73087000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 71109000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 71109000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 71109000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 71109000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 71109000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 76540000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 64476000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 74158000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 66391000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 66391000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2024-12-31",
              "val": 66391000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2024-12-31",
              "val": 66391000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2024-12-31",
              "val": 66391000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 73120000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 71647000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 62177000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 61049000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2025-12-31",
              "val": 61049000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 61049000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 67676000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 62882000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "PaymentsForProceedsFromOtherInvestingActivities": {
        "label": "Payments for (Proceeds from) Other Investing Activities",
        "description": "Amount of cash (inflow) outflow from investing activities classified as other.",
        "units": {
          "USD": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": -193000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2009-01-01",
              "end": "2009-06-30",
              "val": -100000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2009-01-01",
              "end": "2009-09-30",
              "val": -35000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 334000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 334000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-03-31",
              "val": 246000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2010Q1"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 172000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 172000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 1356000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 1356000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 145000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 145000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 145000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 177000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 177000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2011Q1"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": -406000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": -406000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 190000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 190000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 0,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 3931000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 0,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 125000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 125000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 126000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": -2336000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 125000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": -2346000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": -2346000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": -26000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": -1079000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 138000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": -915000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 2347000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 2347000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 2411000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 2411000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 2411000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 133000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 133000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 133000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 133000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 182000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 182000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 183000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 183000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 183000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": -46000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": -46000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": -46000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": -46000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": -46000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": -46000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": -46000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": -46000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": -46000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 0,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 0,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 6031000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 6031000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 8031000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 8031000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 8211000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 8211000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 8031000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": -2314000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 850000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": -224000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 2940000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": -397000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 2767000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": -567000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 2597000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 2597000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": -462000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": -462000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": -668000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": -668000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": -604000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": -604000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": -765000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": -765000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": -765000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 2367000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 2367000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 14502000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 14502000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 14062000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 14062000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 14704000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 14704000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 14704000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": -1760000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": -1760000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": -1760000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": -1760000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": -1760000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": -1760000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": -1156000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": -1156000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": -1156000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 0,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 0,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 4249000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 4249000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 3712000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 3712000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 5011000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 5011000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 5011000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 2452000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 2452000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 2189000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 2189000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 2143000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 2143000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 2211000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 2211000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 2211000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": -6000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": -6000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": -74000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": -74000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": -128000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": -128000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": -278000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": -278000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": -278000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 6000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 6000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": -129000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": -129000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": -235000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": -235000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": -235000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": -235000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 0,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 0,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 0,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 0,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            }
          ]
        }
      },
      "PaymentsForRepurchaseOfCommonStock": {
        "label": "Payments for Repurchase of Common Stock",
        "description": "The cash outflow to reacquire common stock during the period.",
        "units": {
          "USD": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": 50138000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 0,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 0,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 0,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 7754000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 7754000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 7754000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 2524000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 2524000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 2524000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 2524000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 9796000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 9796000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 47203000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 47203000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 47203000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 2438000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 2438000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 95108000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 95108000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 95105000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 95105000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 95107000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 95107000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 95107000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 0,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 0,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 49000000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 49000000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 77417000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 77417000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 98233000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 98233000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 98233000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 1781000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 1781000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 50781000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 50781000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 90603000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 90603000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 101791000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 101791000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 101791000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 0,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 0,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 35000000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 35000000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 58174000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 58174000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 96218000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 96218000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 96218000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 3793000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 3793000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 38793000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 38793000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 53793000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 53793000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 103793000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 103793000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 103793000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 100000000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 100000000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 100000000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 100000000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 250002000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 250002000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 300002000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 300002000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 300002000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 50000000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 50000000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 99504000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 99504000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 299504000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 299504000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 399999000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 399999000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 399999000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 0,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 0,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 0,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 0,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 0,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 0,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 0,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 0,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 0,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 160000000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 160000000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 275038000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 275038000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 375038000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 375038000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 375038000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 75036000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 75036000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 275036000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 275036000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 275036000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 275036000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 435036000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 435036000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 435036000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 292360000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 292360000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 292360000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 292360000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 292360000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 292360000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 592360000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 592360000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 592360000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 0,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 0,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 150012000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 150012000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 150012000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 150012000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 352878000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 352878000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 201088000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 201088000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 297134000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 297134000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 368691000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 465939000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": 31195000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": 98126000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            }
          ]
        }
      },
      "PaymentsRelatedToTaxWithholdingForShareBasedCompensation": {
        "label": "Payment, Tax Withholding, Share-based Payment Arrangement",
        "description": "Amount of cash outflow to satisfy grantee's tax withholding obligation for award under share-based payment arrangement.",
        "units": {
          "USD": [
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 487000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 849000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 889000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 1080000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 1080000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 1319000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2011Q1"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 1420000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 1420000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 1481000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 1481000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 1897000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 1897000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 1897000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 1408000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 1408000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 1627000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 1627000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 1719000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 1719000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 2106000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 2106000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 2106000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 3141000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 3141000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 3234000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 3234000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 3931000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 3931000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 4363000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 4363000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 4363000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 4453000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 4453000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 4650000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 4650000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 5761000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 5761000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 7608000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 7608000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 7608000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 14647000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 14647000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 15389000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 15389000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 17574000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 17574000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 20716000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 20716000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 20716000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 22572000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 22572000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 23207000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 23207000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 26265000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 26265000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 29857000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 29857000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 29857000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 36496000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 36496000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 37968000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 37968000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 39093000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 39093000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 46168000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 46168000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 46168000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 47842000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 47842000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 79330000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 79330000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 81756000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 81756000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 86067000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 86067000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 86067000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 50181000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 50181000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 52718000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 52718000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 55793000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 55793000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 57675000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 57675000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 57675000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 45395000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 45395000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 47038000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 47038000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 48674000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 48674000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 51122000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 51122000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 51122000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 66568000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 66568000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 104889000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 104889000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 107344000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 107344000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 108917000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 108917000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 108917000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 51533000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 51533000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 52187000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 52187000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 52611000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 52611000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 52799000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 52799000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 52799000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 20857000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 20857000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 21788000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 21788000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 22294000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 22294000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 22575000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 22575000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 22575000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 26055000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 26055000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 27602000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 27602000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 27972000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 27972000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 28125000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 28125000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 19577000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 19577000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 19830000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 19830000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 20232000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 20390000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": 28651000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": 29167000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            }
          ]
        }
      },
      "PaymentsToAcquireAvailableForSaleSecurities": {
        "label": "Payments to Acquire Available-for-sale Securities",
        "description": "The cash outflow to acquire debt and equity securities not classified as either held-to-maturity securities or trading securities which would be classified as available-for-sale securities and reported at fair value, with unrealized gains and losses excluded from earnings and reported in a separate component of shareholders' equity.",
        "units": {
          "USD": [
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 42923000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 12742000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 18334000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 18334000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 0,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 0,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 0,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 0,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 28190000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 28190000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 43857000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 43857000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 53862000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 53862000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 67511000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 67511000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 67511000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 3282000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 3282000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 150806000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 150806000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 213990000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 213990000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 303917000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 303917000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 303917000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 157919000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 157919000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 232178000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 232178000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 350611000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 350611000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 437152000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 437152000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 437152000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 113508000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 113508000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 195399000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 195399000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 306938000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 306938000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 447092000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 447092000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 447092000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 143926000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 143926000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 241364000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 241364000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 283797000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 283797000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 405612000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 405612000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 405612000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 169777000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 169777000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 212226000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 212226000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 356928000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 356928000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 390244000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 390244000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 390244000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 0,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 0,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 78405000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 78405000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 150022000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 150022000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 180191000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 180191000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 125823000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 125823000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 353995000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 353995000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 588805000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 693284000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 5341000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 5341000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            }
          ]
        }
      },
      "PaymentsToAcquireAvailableForSaleSecuritiesDebt": {
        "label": "Payments to Acquire Debt Securities, Available-for-sale",
        "description": "Amount of cash outflow to acquire investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).",
        "units": {
          "USD": [
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 180191000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 588805000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 693284000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 693284000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 5341000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 5341000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 5341000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 5341000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 5341000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 5341000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 5341000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 0,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 0,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 0,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 0,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 0,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 0,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 200928000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 200928000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 200928000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 15041000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 15041000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 20466000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 20466000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 20466000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 20466000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 28002000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 28002000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 28002000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 2371000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 2371000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 2373000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 2373000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 2373000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 2373000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 2910000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 2910000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 2910000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 0,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 0,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 0,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 0,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 0,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 0,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            }
          ]
        }
      },
      "PaymentsToAcquireBusinessesNetOfCashAcquired": {
        "label": "Payments to Acquire Businesses, Net of Cash Acquired",
        "description": "The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.",
        "units": {
          "USD": [
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 0,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 186949000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 186949000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 186920000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 186920000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 187588000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 187588000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 187588000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 0,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 0,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 0,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 0,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 0,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 0,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 0,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 7652000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 7652000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 7652000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 7652000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 7652000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 7652000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 7652000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 0,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 0,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 0,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 0,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 0,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 0,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 0,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 0,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 0,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 0,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 0,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 8953000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 8953000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 8953000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 8953000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 8953000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 8953000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 8953000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 8953000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 8953000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 0,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 0,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 0,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 0,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 0,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 0,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 0,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 0,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 420788000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 420788000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 420788000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 420788000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 420788000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 420788000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 420788000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 0,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 8002000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 8002000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 8002000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 8002000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 8002000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 12304000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 12304000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 12304000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 12304000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 12304000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 0,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 0,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 0,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 0,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 0,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 0,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 0,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 77075000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 77075000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 77075000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 77075000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 77075000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 77075000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 77075000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 77075000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 0,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 0,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 0,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 0,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 0,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 0,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": 18963000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": 18963000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            }
          ]
        }
      },
      "PaymentsToAcquireEquityMethodInvestments": {
        "label": "Payments to Acquire Equity Method Investments",
        "description": "The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.",
        "units": {
          "USD": [
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 0,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 0,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 0,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 0,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "end": "2016-07-25",
              "val": 46700000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-07-25",
              "val": 46700000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2016-07-25",
              "val": 46700000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2016-07-25",
              "val": 46700000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2016-07-25",
              "val": 46700000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2016Q2I"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 46745000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 46745000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 46745000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 46745000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 46745000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 12764000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 12764000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 12764000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 12764000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 5000000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 5000000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 5000000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 0,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 0,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 0,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 0,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 75000000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 75000000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 76999000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 76999000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 75390000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 75390000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 75390000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 75390000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 0,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 10000000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 10000000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 10000000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": 50491000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": 100491000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            }
          ]
        }
      },
      "PaymentsToAcquireLoansReceivable": {
        "label": "Payments to Acquire Loans Receivable",
        "description": "The cash outflow for the purchase of loan receivable arising from the financing of goods and services.",
        "units": {
          "USD": [
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 0,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 0,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 0,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 0,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 0,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 0,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 8000000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 8000000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 15000000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 15000000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 23000000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 23000000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 36000000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 36000000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 36000000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 0,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 0,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 0,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 0,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019"
            }
          ]
        }
      },
      "PaymentsToAcquireMarketableSecurities": {
        "label": "Payments to Acquire Marketable Securities",
        "description": "Amount of cash outflow for purchase of marketable security.",
        "units": {
          "USD": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": 75050000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2009-01-01",
              "end": "2009-06-30",
              "val": 20972000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2009-01-01",
              "end": "2009-09-30",
              "val": 33940000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 42923000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 12742000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 18334000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2010"
            }
          ]
        }
      },
      "PaymentsToAcquireOtherInvestments": {
        "label": "Payments to Acquire Other Investments",
        "description": "Amount of cash outflow to acquire investments classified as other.",
        "units": {
          "USD": [
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 5000000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 0,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 0,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2020"
            }
          ]
        }
      },
      "PaymentsToAcquirePropertyPlantAndEquipment": {
        "label": "Payments to Acquire Property, Plant, and Equipment",
        "description": "The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.",
        "units": {
          "USD": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": 14334000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2009-01-01",
              "end": "2009-06-30",
              "val": 3044000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2009-01-01",
              "end": "2009-09-30",
              "val": 4084000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 7192000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 7192000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-03-31",
              "val": 4530000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2010Q1"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 8849000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 8849000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 11932000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 11932000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 18031000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 18031000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 18031000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 2825000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 2825000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2011Q1"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 8522000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 8522000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 21029000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 21029000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 30404000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 30404000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 30404000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 12559000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 12559000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 25778000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 25778000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 31485000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 31485000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 38333000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 38333000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 38333000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 5608000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 5608000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 9389000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 9389000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 15172000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 15172000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 19412000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 19412000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 19412000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 4996000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 4996000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 9960000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 9960000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 16957000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 16957000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 24092000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 24092000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 24092000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 15612000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 15612000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 26172000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 26172000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 36663000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 36663000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 53451000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 53451000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 53451000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 20207000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 20207000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 39025000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 39025000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 56368000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 56368000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 70576000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 70576000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 70576000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 59569000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 59569000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 78045000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 78045000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 126150000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 126150000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 195695000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 195695000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 195695000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 57578000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 57578000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 115295000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 115295000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 169033000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 169033000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 223312000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 223312000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 223312000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "end": "2019-01-15",
              "val": 27000000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2019-01-15",
              "val": 27000000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2019-01-15",
              "val": 27000000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2019-01-15",
              "val": 27000000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-01-15",
              "val": 27000000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2018Q4I"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 35261000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 35261000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 80598000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 80598000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 107157000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 107157000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 149707000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 149707000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 149707000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2019-10-01",
              "end": "2019-12-31",
              "val": 24400000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-10-01",
              "end": "2019-12-31",
              "val": 24400000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q4"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 46085000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 46085000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 80502000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 80502000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 101757000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 101757000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 154916000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 154916000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 154916000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 43431000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 43431000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 167668000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 167668000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 292002000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 292002000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 401098000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 401098000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 401098000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 87328000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 87328000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 163348000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 163348000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 238696000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 238696000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 291900000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 291900000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 291900000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 64119000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 64119000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 122664000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 122664000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 144302000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 144302000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 177716000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 177716000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 177716000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 9369000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 9369000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 62819000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 62819000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 92619000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 92619000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 115580000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 115580000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 25289000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 25289000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 46768000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 46768000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 66529000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 102445000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": 30785000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": 66450000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            }
          ]
        }
      },
      "PreferredStockParOrStatedValuePerShare": {
        "label": "Preferred Stock, Par or Stated Value Per Share",
        "description": "Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.",
        "units": {
          "USD/shares": [
            {
              "end": "2009-12-31",
              "val": 0.0001,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "end": "2009-12-31",
              "val": 0.0001,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "end": "2009-12-31",
              "val": 0.0001,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2009Q4I"
            },
            {
              "end": "2010-06-30",
              "val": 0.0001,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2010Q2I"
            },
            {
              "end": "2010-09-30",
              "val": 0.0001,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2010Q3I"
            },
            {
              "end": "2010-12-31",
              "val": 0.0001,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "end": "2010-12-31",
              "val": 0.0001,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "end": "2010-12-31",
              "val": 0.0001,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2010-12-31",
              "val": 0.0001,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2010-12-31",
              "val": 0.0001,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-03-31",
              "val": 0.0001,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2011Q1I"
            },
            {
              "end": "2011-06-30",
              "val": 0.0001,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 0.0001,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2011-09-30",
              "val": 0.0001,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 0.0001,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 0.0001,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2011-12-31",
              "val": 0.0001,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "end": "2011-12-31",
              "val": 0.0001,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 0.0001,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 0.0001,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 0.0001,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 0.0001,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 0.0001,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "end": "2012-12-31",
              "val": 0.0001,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "end": "2012-12-31",
              "val": 0.0001,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "end": "2012-12-31",
              "val": 0.0001,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 0.0001,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 0.0001,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 0.0001,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 0.0001,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 0.0001,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "end": "2013-12-31",
              "val": 0.0001,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "end": "2013-12-31",
              "val": 0.0001,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "end": "2013-12-31",
              "val": 0.0001,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 0.0001,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 0.0001,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 0.0001,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 0.0001,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 0.0001,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2014-12-31",
              "val": 0.0001,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2014-12-31",
              "val": 0.0001,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "end": "2014-12-31",
              "val": 0.0001,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 0.0001,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 0.0001,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 0.0001,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 0.0001,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 0.0001,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2015-12-31",
              "val": 0.0001,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2015-12-31",
              "val": 0.0001,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "end": "2015-12-31",
              "val": 0.0001,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 0.0001,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 0.0001,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 0.0001,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 0.0001,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 0.0001,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "end": "2016-12-31",
              "val": 0.0001,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
              "val": 0.0001,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "end": "2016-12-31",
              "val": 0.0001,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 0.0001,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 0.0001,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 0.0001,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 0.0001,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 0.0001,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 0.0001,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 0.0001,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 0.0001,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 0.0001,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 0.0001,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 0.0001,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 0.0001,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 0.0001,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 0.0001,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 0.0001,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 0.0001,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 0.0001,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 0.0001,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 0.0001,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 0.0001,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 0.0001,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2019-12-31",
              "val": 0.0001,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2019-12-31",
              "val": 0.0001,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2019-12-31",
              "val": 0.0001,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 0.0001,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-06-30",
              "val": 0.0001,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 0.0001,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 0.0001,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 0.0001,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2020-12-31",
              "val": 0.0001,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2020-12-31",
              "val": 0.0001,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2020-12-31",
              "val": 0.0001,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 0.0001,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 0.0001,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 0.0001,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 0.0001,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 0.0001,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 0.0001,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 0.0001,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 0.0001,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 0.0001,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 0.0001,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 0.0001,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 0.0001,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 0.0001,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 0.0001,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 0.0001,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 0.0001,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 0.0001,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 0.0001,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 0.0001,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 0.0001,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 0.0001,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 0.0001,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 0.0001,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 0.0001,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 0.0001,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 0.0001,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 0.0001,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 0.0001,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 0.0001,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2024-12-31",
              "val": 0.0001,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2024-12-31",
              "val": 0.0001,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2024-12-31",
              "val": 0.0001,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 0.0001,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 0.0001,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 0.0001,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 0.0001,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2025-12-31",
              "val": 0.0001,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 0.0001,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 0.0001,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 0.0001,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "PreferredStockSharesAuthorized": {
        "label": "Preferred Stock, Shares Authorized",
        "description": "The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws.",
        "units": {
          "shares": [
            {
              "end": "2009-12-31",
              "val": 5000000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "end": "2009-12-31",
              "val": 5000000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "end": "2009-12-31",
              "val": 5000000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2009Q4I"
            },
            {
              "end": "2010-06-30",
              "val": 5000000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2010Q2I"
            },
            {
              "end": "2010-09-30",
              "val": 5000000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2010Q3I"
            },
            {
              "end": "2010-12-31",
              "val": 5000000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "end": "2010-12-31",
              "val": 5000000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "end": "2010-12-31",
              "val": 5000000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2010-12-31",
              "val": 5000000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2010-12-31",
              "val": 5000000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-03-31",
              "val": 5000000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2011Q1I"
            },
            {
              "end": "2011-06-30",
              "val": 5000000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 5000000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2011-09-30",
              "val": 5000000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 5000000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 5000000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2011-12-31",
              "val": 5000000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "end": "2011-12-31",
              "val": 5000000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 5000000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 5000000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 5000000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 5000000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 5000000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "end": "2012-12-31",
              "val": 5000000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "end": "2012-12-31",
              "val": 5000000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "end": "2012-12-31",
              "val": 5000000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 5000000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 5000000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 5000000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 5000000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 5000000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "end": "2013-12-31",
              "val": 5000000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "end": "2013-12-31",
              "val": 5000000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "end": "2013-12-31",
              "val": 5000000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 5000000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 5000000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 5000000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 5000000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 5000000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2014-12-31",
              "val": 5000000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2014-12-31",
              "val": 5000000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "end": "2014-12-31",
              "val": 5000000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 5000000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 5000000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 5000000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 5000000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 5000000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2015-12-31",
              "val": 5000000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2015-12-31",
              "val": 5000000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "end": "2015-12-31",
              "val": 5000000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 5000000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 5000000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 5000000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 5000000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 5000000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "end": "2016-12-31",
              "val": 5000000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
              "val": 5000000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "end": "2016-12-31",
              "val": 5000000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 5000000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 5000000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 5000000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 5000000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 5000000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 5000000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 5000000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 5000000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 5000000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 5000000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 5000000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 5000000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 5000000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 5000000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 5000000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 5000000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 5000000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 5000000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 5000000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 5000000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 5000000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2019-12-31",
              "val": 5000000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2019-12-31",
              "val": 5000000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2019-12-31",
              "val": 5000000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 5000000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-06-30",
              "val": 5000000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 5000000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 5000000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 5000000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2020-12-31",
              "val": 5000000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2020-12-31",
              "val": 5000000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2020-12-31",
              "val": 5000000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 5000000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 5000000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 5000000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 5000000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 5000000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 5000000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 5000000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 5000000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 5000000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 5000000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 5000000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 5000000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 5000000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 5000000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 5000000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 5000000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 5000000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 5000000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 5000000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 5000000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 5000000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 5000000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 5000000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 5000000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 5000000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 5000000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 5000000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 5000000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 5000000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2024-12-31",
              "val": 5000000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2024-12-31",
              "val": 5000000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2024-12-31",
              "val": 5000000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 5000000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 5000000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 5000000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 5000000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2025-12-31",
              "val": 5000000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 5000000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 5000000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 5000000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "PreferredStockSharesIssued": {
        "label": "Preferred Stock, Shares Issued",
        "description": "Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt.",
        "units": {
          "shares": [
            {
              "end": "2009-12-31",
              "val": 0,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "end": "2009-12-31",
              "val": 0,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "end": "2009-12-31",
              "val": 0,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2009Q4I"
            },
            {
              "end": "2010-06-30",
              "val": 0,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2010Q2I"
            },
            {
              "end": "2010-09-30",
              "val": 0,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2010Q3I"
            },
            {
              "end": "2010-12-31",
              "val": 0,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "end": "2010-12-31",
              "val": 0,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "end": "2010-12-31",
              "val": 0,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2010-12-31",
              "val": 0,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-03-31",
              "val": 0,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2011Q1I"
            },
            {
              "end": "2011-06-30",
              "val": 0,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 0,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 0,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-09-30",
              "val": 0,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 0,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "end": "2013-12-31",
              "val": 0,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "end": "2013-12-31",
              "val": 0,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 0,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 0,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 0,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 0,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2014-12-31",
              "val": 0,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2014-12-31",
              "val": 0,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 0,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 0,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 0,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 0,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2015-12-31",
              "val": 0,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2015-12-31",
              "val": 0,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 0,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 0,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 0,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 0,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "end": "2016-12-31",
              "val": 0,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
              "val": 0,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 0,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 0,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 0,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 0,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 0,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 0,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 0,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 0,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 0,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 0,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 0,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 0,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 0,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2019-12-31",
              "val": 0,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2019-12-31",
              "val": 0,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2019-12-31",
              "val": 0,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 0,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-06-30",
              "val": 0,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 0,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 0,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 0,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2020-12-31",
              "val": 0,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2020-12-31",
              "val": 0,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2020-12-31",
              "val": 0,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 0,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 0,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 0,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 0,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 0,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 0,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 0,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 0,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 0,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 0,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 0,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 0,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 0,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 0,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 0,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 0,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 0,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 0,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 0,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 0,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 0,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 0,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 0,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 0,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 0,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 0,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 0,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 0,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 0,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2024-12-31",
              "val": 0,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2024-12-31",
              "val": 0,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2024-12-31",
              "val": 0,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 0,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 0,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 0,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 0,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2025-12-31",
              "val": 0,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 0,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 0,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 0,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "PreferredStockValue": {
        "label": "Preferred Stock, Value, Issued",
        "description": "Aggregate par or stated value of issued nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable preferred shares, par value and other disclosure concepts are in another section within stockholders' equity.",
        "units": {
          "USD": [
            {
              "end": "2011-12-31",
              "val": 0,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "end": "2011-12-31",
              "val": 0,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "end": "2011-12-31",
              "val": 0,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-06-30",
              "val": 0,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 0,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 0,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 0,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "end": "2012-12-31",
              "val": 0,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "end": "2012-12-31",
              "val": 0,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "end": "2012-12-31",
              "val": 0,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 0,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 0,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 0,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 0,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 0,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "end": "2013-12-31",
              "val": 0,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "end": "2013-12-31",
              "val": 0,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "end": "2013-12-31",
              "val": 0,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 0,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 0,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 0,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 0,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 0,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2014-12-31",
              "val": 0,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2014-12-31",
              "val": 0,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "end": "2014-12-31",
              "val": 0,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 0,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 0,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 0,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 0,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 0,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2015-12-31",
              "val": 0,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2015-12-31",
              "val": 0,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "end": "2015-12-31",
              "val": 0,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 0,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 0,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 0,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 0,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 0,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "end": "2016-12-31",
              "val": 0,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
              "val": 0,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "end": "2016-12-31",
              "val": 0,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 0,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 0,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 0,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 0,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 0,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 0,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 0,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 0,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 0,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 0,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 0,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 0,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 0,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 0,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 0,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 0,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2019-12-31",
              "val": 0,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2019-12-31",
              "val": 0,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2019-12-31",
              "val": 0,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 0,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-06-30",
              "val": 0,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 0,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 0,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 0,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2020-12-31",
              "val": 0,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2020-12-31",
              "val": 0,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2020-12-31",
              "val": 0,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 0,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 0,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 0,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 0,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 0,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 0,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 0,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 0,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 0,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 0,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 0,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 0,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 0,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 0,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 0,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 0,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 0,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 0,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 0,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 0,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 0,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 0,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 0,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 0,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 0,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 0,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 0,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 0,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 0,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2024-12-31",
              "val": 0,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2024-12-31",
              "val": 0,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2024-12-31",
              "val": 0,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 0,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 0,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 0,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 0,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2025-12-31",
              "val": 0,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 0,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 0,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 0,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "PrepaidExpenseAndOtherAssetsCurrent": {
        "label": "Prepaid Expense and Other Assets, Current",
        "description": "Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer.",
        "units": {
          "USD": [
            {
              "end": "2010-12-31",
              "val": 17358000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2010-12-31",
              "val": 17358000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2010-12-31",
              "val": 17358000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-06-30",
              "val": 22809000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 21794000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 31781000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 31781000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2011-12-31",
              "val": 31781000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "end": "2011-12-31",
              "val": 31781000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "end": "2011-12-31",
              "val": 31781000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 33219000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 33634000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 33594000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 35233000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 35233000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "end": "2012-12-31",
              "val": 35233000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "end": "2012-12-31",
              "val": 36808000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "end": "2012-12-31",
              "val": 36808000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 35989000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 35076000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 34839000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 47465000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 47465000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "end": "2013-12-31",
              "val": 47465000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "end": "2013-12-31",
              "val": 47465000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "end": "2013-12-31",
              "val": 18829000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 43711000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 44839000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 44146000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 19770000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 19770000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2014-12-31",
              "val": 19770000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2014-12-31",
              "val": 19770000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "end": "2014-12-31",
              "val": 19770000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 29869000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 26511000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 29554000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 26700000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 26700000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2015-12-31",
              "val": 26700000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2015-12-31",
              "val": 26700000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "end": "2015-12-31",
              "val": 26700000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 34307000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 37942000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 27469000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 38176000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 38176000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "end": "2016-12-31",
              "val": 38176000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
              "val": 38176000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "end": "2016-12-31",
              "val": 38176000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 70279000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 74427000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 63667000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 80948000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 80948000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 80948000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 80948000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 80948000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 108708000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 126754000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 149891000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 72470000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 72470000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 72470000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 72470000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 72470000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 116833000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 135234000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 96595000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 102450000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 102450000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2019-12-31",
              "val": 102450000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2019-12-31",
              "val": 102450000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2019-12-31",
              "val": 102450000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 131848000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-06-30",
              "val": 140295000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 108576000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 91754000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 91754000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2020-12-31",
              "val": 91754000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2020-12-31",
              "val": 91754000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2020-12-31",
              "val": 91754000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 114257000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 158638000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 155332000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 195305000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 195305000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 195305000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 195305000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 195305000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 241339000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 235265000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 229283000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 226370000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 226370000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 226370000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 226370000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 226370000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 251540000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 236564000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 217632000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 273550000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 273550000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 273550000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 273550000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 273550000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 349594000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 350634000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 290732000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 198582000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 198582000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2024-12-31",
              "val": 198582000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2024-12-31",
              "val": 198582000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2024-12-31",
              "val": 198582000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 220474000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 186941000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 174114000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 165571000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2025-12-31",
              "val": 165571000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 165571000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 215706000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 199826000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "ProceedsFromCollectionOfLoansReceivable": {
        "label": "Proceeds from Collection of Loans Receivable",
        "description": "The cash inflow associated with the collection, including prepayments, of loans receivable issued for financing of goods and services.",
        "units": {
          "USD": [
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 0,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 0,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 0,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 0,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 0,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 0,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 6000000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 6000000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 6000000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 6000000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 6000000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 30000000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 30000000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 30000000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 30000000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 30000000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 30000000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 30000000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 30000000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 30000000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 0,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 0,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 0,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 0,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 0,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 0,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2020"
            }
          ]
        }
      },
      "ProceedsFromCollectionOfNotesReceivable": {
        "label": "Proceeds from Collection of Notes Receivable",
        "description": "The cash inflow associated with principal collections from a borrowing supported by a written promise to pay an obligation.",
        "units": {
          "USD": [
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 0,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 0,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 0,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 0,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 6598000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 6598000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 13185000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 13185000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 21820000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 21820000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 21820000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 4419000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 4419000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 11087000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 11087000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 17828000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 17828000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 26925000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 26925000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 26925000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 4594000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 4594000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 4594000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 4594000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 4594000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 4594000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 4594000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 4594000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 4594000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 0,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 0,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 0,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 0,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 0,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 0,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2023"
            }
          ]
        }
      },
      "ProceedsFromIssuanceOfCommonStock": {
        "label": "Proceeds from Issuance of Common Stock",
        "description": "The cash inflow from the additional capital contribution to the entity.",
        "units": {
          "USD": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": 10506000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2009-01-01",
              "end": "2009-06-30",
              "val": 4185000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2009-01-01",
              "end": "2009-09-30",
              "val": 6376000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 8097000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 8097000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-03-31",
              "val": 6016000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2010Q1"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 7213000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 7213000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 10907000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 10907000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 11822000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 11822000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 11822000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 5068000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 5068000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2011Q1"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 16548000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 16548000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 19882000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 19882000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 25501000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 25501000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 25501000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 10180000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 10180000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 23689000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 23689000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 40194000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 40194000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 42327000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 42327000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 42327000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 13268000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 13268000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 21128000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 21128000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 28291000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 28291000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 34196000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 34196000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 34196000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 11946000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 11946000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 12622000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 12622000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 17373000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 17373000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 18028000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 18028000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 18028000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 4552000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 4552000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 6036000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 6036000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 10559000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 10559000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 11325000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 11325000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 11325000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 5384000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 5384000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 7002000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 7002000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 12877000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 12877000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 13778000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 13778000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 13778000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 7288000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 7288000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 7521000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 7521000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 13850000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 13850000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 14461000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 14461000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 14461000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 8020000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 8020000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 8585000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 8585000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 16607000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 16607000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 16635000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 16635000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 16635000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 9609000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 9609000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 9614000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 9614000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 17907000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 17907000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 17907000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 17907000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 17907000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 10662000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 10662000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 10662000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 10662000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 20314000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 20314000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 20314000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 20314000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 20314000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 13133000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 13133000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 13133000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 13133000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 25623000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 25623000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 25623000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 25623000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 25623000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 14827000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 14827000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 14827000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 14827000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 26149000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 26149000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 26149000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 26149000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 26149000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 14256000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 14256000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 14256000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 14256000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 26595000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 26595000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 26595000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 26595000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 26595000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 14339000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 14339000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 14339000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 14339000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 25281000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 25281000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 25281000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 25281000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 13909000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 13909000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 13909000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 13909000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 21749000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 21749000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": 11718000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": 11718000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            }
          ]
        }
      },
      "ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities": {
        "label": "Proceeds from Maturities, Prepayments and Calls of Debt Securities, Available-for-sale",
        "description": "Amount of cash inflow from maturity, prepayment and call of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).",
        "units": {
          "USD": [
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 375105000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 107021000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 211829000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 290754000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 290754000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 42641000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 42641000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 42641000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 42641000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 42641000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 42641000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 42641000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 42641000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 0,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 0,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 0,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 0,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 0,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 0,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 498000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 498000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 498000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 6095000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 6095000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 21690000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 21690000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 22456000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 22456000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 23785000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 23785000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 23785000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 10870000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 10870000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 17601000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 17601000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 35754000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 35754000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 55170000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 55170000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 55170000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 6035000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 6035000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 15560000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 15560000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 25660000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 25660000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 25660000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 25660000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 0,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 0,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 0,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 0,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            }
          ]
        }
      },
      "ProceedsFromPaymentsForOtherFinancingActivities": {
        "label": "Proceeds from (Payments for) Other Financing Activities",
        "description": "Amount of cash inflow (outflow) from financing activities classified as other.",
        "units": {
          "USD": [
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 0,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 0,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 0,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": -5000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": -5000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": -13000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": -13000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": -6000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": -6000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 0,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 0,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 0,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 0,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": -2190000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": -2190000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 0,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1"
            }
          ]
        }
      },
      "ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities": {
        "label": "Proceeds from Sale and Maturity of Debt Securities, Available-for-sale",
        "description": "Amount of cash inflow from sale, maturity, prepayment and call of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).",
        "units": {
          "USD": [
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 48893000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 10980000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 17474000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 20590000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 20590000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 3767000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2011Q1"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 6859000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 6859000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 8842000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 8842000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 10317000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 10317000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 8915000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 2751000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 2751000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 10002000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 10002000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 17363000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 16067000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 25198000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 24901000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 24901000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 4366000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 4366000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 18117000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 18117000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 32229000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 32229000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 90917000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 90917000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 90917000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 53137000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 53137000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 92005000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 92005000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 124101000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 124101000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 176810000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 176810000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 176810000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 86908000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 86908000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 148685000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 148685000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 238412000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 238412000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 304125000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 304125000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 304125000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 128524000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 128524000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 210693000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 210693000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 328498000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 328498000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 387873000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 387873000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 387873000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 87003000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 87003000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 173094000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 173094000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 260487000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 260487000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 349240000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 349240000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 349240000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 126825000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 126825000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 207475000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 207475000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 259870000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 259870000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 375105000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 375105000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 80306000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 80306000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 107021000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 211829000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 290754000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 42641000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1"
            }
          ]
        }
      },
      "ProceedsFromSaleAndMaturityOfMarketableSecurities": {
        "label": "Proceeds from Sale and Maturity of Marketable Securities",
        "description": "The cash inflow associated with the aggregate amount received by the entity through sale or maturity of marketable securities (held-to-maturity or available-for-sale) during the period.",
        "units": {
          "USD": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": 87926000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2009-01-01",
              "end": "2009-06-30",
              "val": 26027000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2009-01-01",
              "end": "2009-09-30",
              "val": 40910000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 48893000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-03-31",
              "val": 4988000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2010Q1"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 10980000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 17474000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 20590000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 3767000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2011Q1"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 1402000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 297000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 297000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 31741000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 31741000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 31741000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 82990000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 82990000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 82990000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 30011000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 30011000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 30011000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 216119000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 216119000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 216119000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 39536000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 39536000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 39536000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 9560000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 9560000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 194677000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019"
            }
          ]
        }
      },
      "ProceedsFromSaleOfAvailableForSaleSecurities": {
        "label": "Proceeds from Sale of Available-for-sale Securities",
        "description": "The cash inflow associated with the sale of debt and equity securities classified as available-for-sale securities.",
        "units": {
          "USD": [
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 0,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 1296000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 0,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 5043000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 5043000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 6943000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 6943000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 10564000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 10564000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 32683000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 32683000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 72276000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 72276000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 5505000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 5505000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 12518000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 12518000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 12518000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 12518000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 293000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 293000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 24224000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 24224000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 209302000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 209302000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 11684000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 11684000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 32352000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 32352000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 32291000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 32291000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 9560000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 9560000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 9560000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 9560000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 9560000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 9560000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 8727000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 8727000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 14456000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 14456000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 194677000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 278817000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 278817000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            }
          ]
        }
      },
      "ProceedsFromSaleOfAvailableForSaleSecuritiesDebt": {
        "label": "Proceeds from Sale of Debt Securities, Available-for-sale",
        "description": "Amount of cash inflow from sale of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).",
        "units": {
          "USD": [
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 9560000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 194677000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 194677000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 194677000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 278817000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 278817000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 278817000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 278817000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 278817000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 278817000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 278817000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 0,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 0,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 0,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 0,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 0,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 0,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 3114000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 3114000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 3114000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 8528000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 8528000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 92235000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 92235000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 93647000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 93647000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 97316000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 97316000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 97316000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 2785000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 2785000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 4048000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 4048000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 5173000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 5173000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 6234000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 6234000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 6234000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 831000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 831000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 7518000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 7518000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 18193000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 18193000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 18193000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 18193000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 0,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 0,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 0,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 0,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            }
          ]
        }
      },
      "ProceedsFromSaleOfPropertyPlantAndEquipment": {
        "label": "Proceeds from Sale of Property, Plant, and Equipment",
        "description": "The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale.",
        "units": {
          "USD": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": 189000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 0,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 95000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 95000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 0,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2012"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 0,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": 42000000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            }
          ]
        }
      },
      "PropertyPlantAndEquipmentAdditions": {
        "label": "Property, Plant and Equipment, Additions",
        "description": "Amount of acquisition of long-lived, physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.",
        "units": {
          "USD": [
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 56000000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019"
            }
          ]
        }
      },
      "PropertyPlantAndEquipmentGross": {
        "label": "Property, Plant and Equipment, Gross",
        "description": "Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.",
        "units": {
          "USD": [
            {
              "end": "2010-12-31",
              "val": 98458000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-12-31",
              "val": 129432000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 129432000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 165126000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 165126000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-12-31",
              "val": 181249000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 181249000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-12-31",
              "val": 197927000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 197927000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 254510000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 254510000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 310881000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 310881000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 484601000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 484601000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 693056000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 693056000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-12-31",
              "val": 861246000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 861246000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-12-31",
              "val": 1035973000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 1035973000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-12-31",
              "val": 1441027000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 1441027000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-12-31",
              "val": 1681581000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 1681581000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-12-31",
              "val": 1841625000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 1841625000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-12-31",
              "val": 1932846000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 1932846000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 1898777000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025Q4I"
            }
          ]
        }
      },
      "PropertyPlantAndEquipmentNet": {
        "label": "Property, Plant and Equipment, Net",
        "description": "Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.",
        "units": {
          "USD": [
            {
              "end": "2009-12-31",
              "val": 24971000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "end": "2009-12-31",
              "val": 24971000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "end": "2009-12-31",
              "val": 24971000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2009Q4I"
            },
            {
              "end": "2010-06-30",
              "val": 27249000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2010Q2I"
            },
            {
              "end": "2010-09-30",
              "val": 28102000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2010Q3I"
            },
            {
              "end": "2010-12-31",
              "val": 30684000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "end": "2010-12-31",
              "val": 30684000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "end": "2010-12-31",
              "val": 30684000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2010-12-31",
              "val": 30684000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2010-12-31",
              "val": 30684000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-03-31",
              "val": 30722000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2011Q1I"
            },
            {
              "end": "2011-06-30",
              "val": 37122000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 46388000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 53965000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 53965000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2011-12-31",
              "val": 53965000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "end": "2011-12-31",
              "val": 53965000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "end": "2011-12-31",
              "val": 53965000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 62912000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 72207000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 75248000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 79191000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 79191000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "end": "2012-12-31",
              "val": 79191000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "end": "2012-12-31",
              "val": 79191000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "end": "2012-12-31",
              "val": 79191000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 72672000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 76932000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 76552000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 75743000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 75743000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "end": "2013-12-31",
              "val": 75743000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "end": "2013-12-31",
              "val": 75743000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "end": "2013-12-31",
              "val": 75743000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 79093000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 81312000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 86447000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 90125000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 90125000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2014-12-31",
              "val": 90125000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2014-12-31",
              "val": 90125000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "end": "2014-12-31",
              "val": 90125000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 99764000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 108029000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 120738000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 136473000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 136473000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2015-12-31",
              "val": 136473000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2015-12-31",
              "val": 136473000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "end": "2015-12-31",
              "val": 136473000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 148029000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 161685000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 172658000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 175167000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 175167000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "end": "2016-12-31",
              "val": 175167000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
              "val": 175167000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "end": "2016-12-31",
              "val": 175167000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 231692000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 255539000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 295901000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 348793000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 348793000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 348793000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 348793000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 348793000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 400528000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 447933000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 491630000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 521329000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 521329000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 521329000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 521329000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 521329000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 575267000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 599611000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 606581000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 631730000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 631730000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2019-12-31",
              "val": 631730000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2019-12-31",
              "val": 631730000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2019-12-31",
              "val": 631730000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 663491000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-06-30",
              "val": 668951000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 703657000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 734721000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 734721000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2020-12-31",
              "val": 734721000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2020-12-31",
              "val": 734721000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2020-12-31",
              "val": 734721000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 763870000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 960852000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 1002769000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 1081926000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 1081926000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 1081926000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 1081926000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 1081926000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 1140922000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 1182444000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 1199880000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 1231855000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 1231855000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 1231855000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 1231855000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 1231855000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 1262815000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 1279042000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 1268388000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 1290863000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 1290863000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 1290863000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 1290863000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 1290863000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 1281709000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 1277826000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 1290427000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 1271134000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 1271134000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2024-12-31",
              "val": 1271134000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2024-12-31",
              "val": 1271134000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2024-12-31",
              "val": 1271134000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 1264847000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 1260909000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 1184554000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 1131453000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2025-12-31",
              "val": 1131453000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 1131453000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 1108092000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 1114261000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "PropertyPlantAndEquipmentUsefulLifeMaximum": {
        "label": "Property, Plant and Equipment, Useful Life, Maximum (Deprecated 2012-01-31)",
        "description": "The maximum useful life of long-lived, physical assets used in the normal conduct of business and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software.",
        "units": {
          "Year": [
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 5,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011"
            }
          ]
        }
      },
      "PropertyPlantAndEquipmentUsefulLifeMinimum": {
        "label": "Property, Plant and Equipment, Useful Life, Minimum (Deprecated 2012-01-31)",
        "description": "The minimum useful life of long lived, physical assets used in the normal conduct of business and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software.",
        "units": {
          "Year": [
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 3,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011"
            }
          ]
        }
      },
      "ProvisionForDoubtfulAccounts": {
        "label": "Accounts Receivable, Credit Loss Expense (Reversal)",
        "description": "Amount of expense (reversal of expense) for expected credit loss on accounts receivable.",
        "units": {
          "USD": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": 71000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2009-01-01",
              "end": "2009-06-30",
              "val": 517000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2009-01-01",
              "end": "2009-09-30",
              "val": 958000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 708000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-03-31",
              "val": 200000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2010Q1"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": -150000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 150000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": -10000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 195000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 162000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2011Q1"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 85000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 2660000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 1200000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 870000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 5853000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 5853000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 4838000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 12578000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 13090000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 12073000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 12073000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 455000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 829000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 1559000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 2814000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2021"
            }
          ]
        }
      },
      "ProvisionForLoanLeaseAndOtherLosses": {
        "label": "Provision for Loan, Lease, and Other Losses",
        "description": "Amount of expense related loan transactions, lease transactions, credit loss from transactions other than loan and lease transactions, and other loss based on assessment of uncollectability from the counterparty to reduce the account to their net realizable value.",
        "units": {
          "USD": [
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 3240000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 4084000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 12578000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 13090000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            }
          ]
        }
      },
      "PurchaseCommitmentRemainingMinimumAmountCommitted": {
        "label": "Purchase Commitment, Remaining Minimum Amount Committed",
        "description": "Minimum amount to be expended to satisfy the terms of arrangements in which the entity has agreed to expend funds to procure goods or services, excluding long-term purchase commitments or unconditional purchase obligations.",
        "units": {
          "USD": [
            {
              "end": "2017-11-27",
              "val": 305200000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-11-27",
              "val": 305200000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-11-27",
              "val": 305200000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-11-27",
              "val": 305200000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-05-29",
              "val": 425900000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2018-05-29",
              "val": 425900000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2018-05-29",
              "val": 425900000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 32500000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            }
          ]
        }
      },
      "RepaymentsOfShortTermDebt": {
        "label": "Repayments of Short-term Debt",
        "description": "The cash outflow for a borrowing having initial term of repayment within one year or the normal operating cycle, if longer.",
        "units": {
          "USD": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": 407000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2009-01-01",
              "end": "2009-06-30",
              "val": 136000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2009-01-01",
              "end": "2009-09-30",
              "val": 136000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 136000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 136000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            }
          ]
        }
      },
      "ResearchAndDevelopmentExpense": {
        "label": "Research and Development Expense",
        "description": "The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.",
        "units": {
          "USD": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": 26165000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2009-01-01",
              "end": "2009-06-30",
              "val": 10860000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2009-04-01",
              "end": "2009-06-30",
              "val": 5669000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2009Q2"
            },
            {
              "start": "2009-01-01",
              "end": "2009-09-30",
              "val": 16471000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2009-07-01",
              "end": "2009-09-30",
              "val": 5611000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2009Q3"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 22252000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 22252000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-03-31",
              "val": 6116000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2010Q1"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 12512000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 12512000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2010-04-01",
              "end": "2010-06-30",
              "val": 6396000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-04-01",
              "end": "2010-06-30",
              "val": 6396000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2010Q2"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 19104000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 19104000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2010-07-01",
              "end": "2010-09-30",
              "val": 6592000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-07-01",
              "end": "2010-09-30",
              "val": 6592000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2010Q3"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 25997000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 25997000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 25997000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 9390000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 9390000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2011Q1"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 18660000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 18660000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2011-04-01",
              "end": "2011-06-30",
              "val": 9270000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-04-01",
              "end": "2011-06-30",
              "val": 9270000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2011Q2"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 27586000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 27586000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": 8926000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": 8926000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2011Q3"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 37154000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 37154000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 37154000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 10526000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 10526000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 21206000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 21206000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": 10680000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": 10680000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2012Q2"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 31158000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 31158000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 9952000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 9952000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2012Q3"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 42869000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 42869000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 42869000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 11282000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 11282000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 22198000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 22198000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-04-01",
              "end": "2013-06-30",
              "val": 10916000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-04-01",
              "end": "2013-06-30",
              "val": 10916000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2013Q2"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 33113000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 33113000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 10915000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 10915000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2013Q3"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 44083000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 44083000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 44083000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 13380000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 13380000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 26669000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 26669000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2014-04-01",
              "end": "2014-06-30",
              "val": 13289000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-04-01",
              "end": "2014-06-30",
              "val": 13289000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2014Q2"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 39523000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 39523000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": 12854000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": 12854000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2014Q3"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 52799000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 52799000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 52799000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 13885000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 13885000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 29569000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 29569000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2015-04-01",
              "end": "2015-06-30",
              "val": 15684000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-04-01",
              "end": "2015-06-30",
              "val": 15684000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2015Q2"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 47348000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 47348000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2015-07-01",
              "end": "2015-09-30",
              "val": 17779000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-07-01",
              "end": "2015-09-30",
              "val": 17779000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2015Q3"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 61237000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 61237000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 61237000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 15083000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 15083000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 33696000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 33696000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-04-01",
              "end": "2016-06-30",
              "val": 18613000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-04-01",
              "end": "2016-06-30",
              "val": 18613000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2016Q2"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 54111000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 54111000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": 20415000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": 20415000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2016Q3"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 75720000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 75720000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 75720000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 22804000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 22804000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 47188000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 47188000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-04-01",
              "end": "2017-06-30",
              "val": 24384000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-04-01",
              "end": "2017-06-30",
              "val": 24384000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2017Q2"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 71389000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 71389000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": 24201000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": 24201000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2017Q3"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 97559000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 97559000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 97559000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 29591000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 29591000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 60395000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 60395000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": 30804000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": 30804000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2018Q2"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 93095000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 93095000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 32700000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 32700000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2018Q3"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 128899000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 128899000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 128899000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 37503000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 37503000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 76354000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 76354000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 38851000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 38851000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2019Q2"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 116034000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 116034000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 39680000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 39680000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2019Q3"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 157361000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 157361000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 157361000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 41532000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 41532000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 81893000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 81893000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": 40361000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": 40361000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2020Q2"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 126420000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 126420000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 44527000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 44527000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2020Q3"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 175307000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 175307000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 175307000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 54537000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 54537000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 112252000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 112252000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 57715000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 57715000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2021Q2"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 177839000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 177839000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 65587000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 65587000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2021Q3"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 250315000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 250315000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 250315000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 71807000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 71807000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 144772000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 144772000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": 72965000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": 72965000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2022Q2"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 221738000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 221738000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": 76966000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": 76966000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2022Q3"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 305258000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 305258000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 305258000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 87447000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 87447000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 175932000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 175932000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 88485000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 88485000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2023Q2"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 264670000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 264670000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 88738000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 88738000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2023Q3"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 346830000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 346830000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 346830000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 91859000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 91859000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 184052000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 184052000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 92193000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 92193000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2024Q2"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 269324000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 269324000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 85272000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 85272000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2024Q3"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 364202000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 364202000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 97201000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 97201000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 193599000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 193599000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 96398000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 96398000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q2"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 286875000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-07-01",
              "end": "2025-09-30",
              "val": 93276000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 369911000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": 98658000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": 200690000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2026-04-01",
              "end": "2026-06-30",
              "val": 102032000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2"
            }
          ]
        }
      },
      "RestrictedCashAndCashEquivalents": {
        "label": "Restricted Cash and Cash Equivalents",
        "description": "Amount of cash and cash equivalents restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.",
        "units": {
          "USD": [
            {
              "end": "2015-12-31",
              "val": 3500000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 3700000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 3700000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            }
          ]
        }
      },
      "RestrictedCashAndCashEquivalentsAtCarryingValue": {
        "label": "Restricted Cash and Cash Equivalents, Current",
        "description": "Amount of cash and cash equivalents restricted as to withdrawal or usage, classified as current. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.",
        "units": {
          "USD": [
            {
              "end": "2011-03-31",
              "val": 7991000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2011Q1I"
            },
            {
              "end": "2011-12-31",
              "val": 4026000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 4026000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2011-12-31",
              "val": 4026000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "end": "2011-12-31",
              "val": 4026000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "end": "2011-12-31",
              "val": 4026000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 4023000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 1178000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 1564000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 1575000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 1575000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "end": "2012-12-31",
              "val": 1575000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 508000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 516000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2014-12-31",
              "val": 3800000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 3800000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 3500000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015Q4I"
            }
          ]
        }
      },
      "RestructuringAndRelatedCostExpectedNumberOfPositionsEliminated": {
        "label": "Restructuring and Related Cost, Expected Number of Positions Eliminated",
        "description": "The expected number of positions to be eliminated as a result of restructuring activities.",
        "units": {
          "Person": [
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 119,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011"
            },
            {
              "start": "2011-10-01",
              "end": "2011-12-31",
              "val": 119,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011Q4"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 119,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 119,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 119,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 119,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2012"
            }
          ]
        }
      },
      "RestructuringAndRelatedCostIncurredCost": {
        "label": "Restructuring and Related Cost, Incurred Cost",
        "description": "Discloses the amount charged against the accrued restructuring reserves, or earnings if not previously accrued, during the period for the specified type of restructuring cost.",
        "units": {
          "USD": [
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 1100000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 1083000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 500000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 800000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 766000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            }
          ]
        }
      },
      "RestructuringCharges": {
        "label": "Restructuring Charges",
        "description": "Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.",
        "units": {
          "USD": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": 6231000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2009-01-01",
              "end": "2009-06-30",
              "val": 1319000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2009-04-01",
              "end": "2009-06-30",
              "val": 409000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2009Q2"
            },
            {
              "start": "2009-01-01",
              "end": "2009-09-30",
              "val": 1319000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 1319000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 1319000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 10200000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 10200000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 10176000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2022-10-01",
              "end": "2022-12-31",
              "val": 10176000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2022Q4"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 100000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 100000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 10200000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 100000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q2"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 13989000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2023"
            },
            {
              "start": "2023-10-01",
              "end": "2023-12-31",
              "val": 14000000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2023-10-01",
              "end": "2023-12-31",
              "val": 14000000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-10-01",
              "end": "2023-12-31",
              "val": 14000000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-10-01",
              "end": "2023-12-31",
              "val": 14000000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-10-01",
              "end": "2023-12-31",
              "val": 14000000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2023Q4"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": -152000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 14000000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": -509000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 0,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 0,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2024Q3"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 37000000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2024"
            },
            {
              "start": "2024-10-01",
              "end": "2024-12-31",
              "val": 37000000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-10-01",
              "end": "2024-12-31",
              "val": 37000000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q4"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 2056000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 2030000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 31827000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-07-01",
              "end": "2025-09-30",
              "val": 31827000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3"
            }
          ]
        }
      },
      "RestructuringReserve": {
        "label": "Restructuring Reserve",
        "description": "Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.",
        "units": {
          "USD": [
            {
              "end": "2008-12-31",
              "val": 2501000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2008Q4I"
            },
            {
              "end": "2010-12-31",
              "val": 0,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-12-31",
              "val": 1010000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-12-31",
              "val": 42000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2021-12-31",
              "val": 0,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-12-31",
              "val": 3916000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 3900000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 3900000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 3900000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 3916000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2022-12-31",
              "val": 3916000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 300000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2023-03-31",
              "val": 300000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 300000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-12-31",
              "val": 5299000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 5300000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 5300000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 5300000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 5299000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 5299000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2023-12-31",
              "val": 5299000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2023-12-31",
              "val": 5299000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 5299000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 1400000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2024-03-31",
              "val": 1395000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 200000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2024-06-30",
              "val": 217000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-12-31",
              "val": 13001000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 13001000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2024-12-31",
              "val": 13001000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2024-12-31",
              "val": 13001000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2024-12-31",
              "val": 13001000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2024-12-31",
              "val": 13001000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2024-12-31",
              "val": 13001000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 4039000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 2117000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 32448000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 17600000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2025-12-31",
              "val": 17600000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 17600000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 6263000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 2464000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "RestructuringReservePeriodExpense": {
        "label": "Restructuring Reserve, Period Expense (Deprecated 2012-01-31)",
        "description": "Reserve increase representing the amount charged against earnings in the period for a specified incurred and estimated type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.",
        "units": {
          "USD": [
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 1319000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            }
          ]
        }
      },
      "RestructuringReserveSettledWithCash": {
        "label": "Restructuring Reserve, Settled With Cash (Deprecated 2013-01-31)",
        "description": "Amount of cash paid in the period to fully or partially settle a specified, previously accrued type of restructuring cost.",
        "units": {
          "USD": [
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 3820000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 73000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 1734000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2012"
            }
          ]
        }
      },
      "RetainedEarningsAccumulatedDeficit": {
        "label": "Retained Earnings (Accumulated Deficit)",
        "description": "The cumulative amount of the reporting entity's undistributed earnings or deficit.",
        "units": {
          "USD": [
            {
              "end": "2009-12-31",
              "val": -252499000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "end": "2009-12-31",
              "val": -252499000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "end": "2009-12-31",
              "val": -252499000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2009Q4I"
            },
            {
              "end": "2010-06-30",
              "val": -204966000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2010Q2I"
            },
            {
              "end": "2010-09-30",
              "val": -188151000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2010Q3I"
            },
            {
              "end": "2010-12-31",
              "val": -178246000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "end": "2010-12-31",
              "val": -178246000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "end": "2010-12-31",
              "val": -178246000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2010-12-31",
              "val": -178246000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2010-12-31",
              "val": -178246000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-03-31",
              "val": -162405000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2011Q1I"
            },
            {
              "end": "2011-06-30",
              "val": -151243000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": -131979000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": -116513000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": -116513000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2011-12-31",
              "val": -116513000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "end": "2011-12-31",
              "val": -116513000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "end": "2011-12-31",
              "val": -116513000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": -97170000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": -68680000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": -74429000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": -89626000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": -89626000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "end": "2012-12-31",
              "val": -89626000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "end": "2012-12-31",
              "val": -89626000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "end": "2012-12-31",
              "val": -89626000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": -133375000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": -172868000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": -138332000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": -95910000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": -95910000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "end": "2013-12-31",
              "val": -95910000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "end": "2013-12-31",
              "val": -95910000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "end": "2013-12-31",
              "val": -95910000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": -63465000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": -67606000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": -53135000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": -30507000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": -30507000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2014-12-31",
              "val": -30507000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2014-12-31",
              "val": -30507000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "end": "2014-12-31",
              "val": -30507000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 4179000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": -5826000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": -11890000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 27391000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 27391000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2015-12-31",
              "val": 27391000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2015-12-31",
              "val": 27391000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "end": "2015-12-31",
              "val": 27391000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 67937000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 87607000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 117965000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 131448000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 131448000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "end": "2016-12-31",
              "val": 131448000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
              "val": 131448000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "end": "2016-12-31",
              "val": 131448000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 196157000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 232876000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 301117000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 263356000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 267274000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 267274000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 267274000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 267274000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 267336000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 373441000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 328432000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 378143000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 378143000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 378143000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 378143000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 378143000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 402021000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 501275000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 415159000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 439912000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 439912000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2019-12-31",
              "val": 439912000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2019-12-31",
              "val": 439912000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2019-12-31",
              "val": 439912000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 1958043000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-06-30",
              "val": 1917441000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 2056812000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 2215800000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 2215800000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2020-12-31",
              "val": 2215800000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2020-12-31",
              "val": 2215800000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2020-12-31",
              "val": 2215800000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 2416176000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 2458955000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 2526705000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 2619374000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 2619374000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 2619374000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 2619374000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 2619374000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 2680270000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 2601961000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 2674661000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 2566688000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 2566688000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 2566688000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 2566688000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 2566688000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 2373513000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 2485327000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 2606754000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 2447174000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 2447174000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 2447174000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 2447174000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 2447174000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 2502675000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 2456562000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 2572525000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 2483766000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 2483766000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2024-12-31",
              "val": 2483766000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2024-12-31",
              "val": 2483766000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2024-12-31",
              "val": 2483766000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 2389252000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 2425044000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 2416933000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 2464157000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2025-12-31",
              "val": 2464157000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 2464157000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 2548385000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 2595563000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "RevenueFromContractWithCustomerExcludingAssessedTax": {
        "label": "Revenue from Contract with Customer, Excluding Assessed Tax",
        "description": "Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.",
        "units": {
          "USD": [
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 1079874000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 1473413000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 1473413000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 436924000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 927183000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": 490259000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2018Q2"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 1432472000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 505289000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2018Q3"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 1966492000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 1966492000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 1966492000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 548971000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 548971000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 1149668000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 1149668000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 600697000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 600697000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2019Q2"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 1757009000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 1757009000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 607341000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 607341000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2019Q3"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 2406796000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 2406796000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 2406796000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 550963000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 550963000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 903277000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 903277000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": 352314000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": 352314000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2020Q2"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 1637421000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 1637421000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 734144000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 734144000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2020Q3"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 2471941000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 2471941000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 2471941000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 894771000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 894771000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 1905579000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 1905579000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 1010808000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 1010808000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2021Q2"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 2921485000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 2921485000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 1015906000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 1015906000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2021Q3"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 3952584000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 3952584000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 3952584000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 973219000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 973219000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 1942772000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 1942772000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": 969553000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": 969553000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2022Q2"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 2833120000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 2833120000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": 890348000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": 890348000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2022Q3"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 3734635000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 3734635000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 3734635000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 943147000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 943147000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 1945320000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 1945320000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 1002173000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 1002173000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2023Q2"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 2905534000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 2905534000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 960214000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 960214000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2023Q3"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 3862260000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 3862260000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 3862260000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 997431000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 997431000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 2025921000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 2025921000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 1028490000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 1028490000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2024Q2"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 3003793000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 3003793000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 977872000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 977872000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2024Q3"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 3999012000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 3999012000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 979262000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 979262000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 1991711000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 1991711000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 1012449000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 1012449000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q2"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 2987403000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-07-01",
              "end": "2025-09-30",
              "val": 995692000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 4034964000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": 1040087000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": 2096279000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2026-04-01",
              "end": "2026-06-30",
              "val": 1056192000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2"
            }
          ]
        }
      },
      "RevenueRemainingPerformanceObligation": {
        "label": "Revenue, Remaining Performance Obligation, Amount",
        "description": "Amount of transaction price allocated to performance obligation that has not been recognized as revenue.",
        "units": {
          "USD": [
            {
              "end": "2018-06-30",
              "val": 358000000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 380700000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 431800000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 483800000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 521400000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 558100000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 610300000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 619700000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-06-30",
              "val": 651900000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 744700000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 873400000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 963500000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 1100000000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-12-31",
              "val": 1307300000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-12-31",
              "val": 1515400000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 1515400000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-12-31",
              "val": 1578300000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 1578300000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-12-31",
              "val": 1444900000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 1444900000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 1352700000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025Q4I"
            }
          ]
        }
      },
      "Revenues": {
        "label": "Revenues",
        "description": "Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).",
        "units": {
          "USD": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": 303976000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2009-01-01",
              "end": "2009-06-30",
              "val": 146448000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2009-04-01",
              "end": "2009-06-30",
              "val": 76316000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2009Q2"
            },
            {
              "start": "2009-01-01",
              "end": "2009-09-30",
              "val": 225717000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2009-07-01",
              "end": "2009-09-30",
              "val": 79269000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2009Q3"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 312333000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-03-31",
              "val": 90090000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2010Q1"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 198286000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-04-01",
              "end": "2010-06-30",
              "val": 108196000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2010Q2"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 294233000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 294233000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-07-01",
              "end": "2010-09-30",
              "val": 95947000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2010Q3"
            },
            {
              "start": "2010-07-01",
              "end": "2010-09-30",
              "val": 95947000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 387126000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 104856000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2011Q1"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 350836000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": 125894000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3"
            }
          ]
        }
      },
      "RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability": {
        "label": "Right-of-Use Asset Obtained in Exchange for Finance Lease Liability",
        "description": "Amount of increase in right-of-use asset obtained in exchange for finance lease liability.",
        "units": {
          "USD": [
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 0,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 51064000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 51064000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 51064000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 51064000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 51064000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 51064000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 51064000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 51064000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 51064000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 0,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 0,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 0,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 0,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 0,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 0,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2021"
            }
          ]
        }
      },
      "RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability": {
        "label": "Right-of-Use Asset Obtained in Exchange for Operating Lease Liability",
        "description": "Amount of increase in right-of-use asset obtained in exchange for operating lease liability.",
        "units": {
          "USD": [
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 0,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 15984000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 15984000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 21066000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 21066000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 26395000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 26395000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 32723000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 32723000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 32723000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 21602000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 21602000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 25545000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 25545000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 44915000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 44915000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 47981000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 47981000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 47981000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 7369000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 7369000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 24338000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 24338000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 31635000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 31635000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 68463000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 68463000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 68463000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 12262000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 12262000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 16351000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 16351000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 26532000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 26532000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 34144000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 34144000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 34144000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 5559000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 5559000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 21346000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 21346000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 25048000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 25048000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 27901000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 27901000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 27901000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 10568000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 10568000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 22820000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 22820000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 25422000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 25422000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 32671000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 32671000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 5024000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 5024000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 12259000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 12259000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 19996000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 22291000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": 11706000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": 26590000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            }
          ]
        }
      },
      "SalesAndExciseTaxPayableCurrent": {
        "label": "Sales and Excise Tax Payable, Current",
        "description": "Carrying value as of the balance sheet date of liabilities incurred through that date and payable for statutory sales and use taxes, including value added tax. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).",
        "units": {
          "USD": [
            {
              "end": "2010-12-31",
              "val": 2940000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2010-12-31",
              "val": 2940000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2010-12-31",
              "val": 2940000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-06-30",
              "val": 6252000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 6624000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 7052000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 7052000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2011-12-31",
              "val": 7052000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "end": "2011-12-31",
              "val": 7052000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "end": "2011-12-31",
              "val": 7052000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 6258000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 6371000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 6360000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 5253000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 5253000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "end": "2012-12-31",
              "val": 5253000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "end": "2012-12-31",
              "val": 5253000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "end": "2012-12-31",
              "val": 5253000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 4890000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 4672000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 5341000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 6215000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 6215000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "end": "2013-12-31",
              "val": 6215000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "end": "2013-12-31",
              "val": 6215000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "end": "2013-12-31",
              "val": 6215000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 6230000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 6447000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 7144000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 5456000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 5456000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2014-12-31",
              "val": 5456000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2014-12-31",
              "val": 5456000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "end": "2014-12-31",
              "val": 5456000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 5015000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 5387000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 5650000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 4801000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 4801000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2015-12-31",
              "val": 4801000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2015-12-31",
              "val": 4801000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "end": "2015-12-31",
              "val": 4801000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 4863000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 5339000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 6087000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 5032000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 5032000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "end": "2016-12-31",
              "val": 5032000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
              "val": 5032000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "end": "2016-12-31",
              "val": 5032000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 7080000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 10211000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 8693000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 5503000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 5503000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 5503000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 5503000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 5503000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 5340000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 5955000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 6734000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 6276000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 6276000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 6276000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 6276000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 5893000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 6864000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 7135000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 9089000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-06-30",
              "val": 11733000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            }
          ]
        }
      },
      "SalesRevenueGoodsNet": {
        "label": "Sales Revenue, Goods, Net (Deprecated 2018-01-31)",
        "description": "Aggregate revenue during the period from the sale of goods in the normal course of business, after deducting returns, allowances and discounts.",
        "units": {
          "USD": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": 285798000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2009-01-01",
              "end": "2009-06-30",
              "val": 137658000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2009-04-01",
              "end": "2009-06-30",
              "val": 71388000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2009Q2"
            },
            {
              "start": "2009-01-01",
              "end": "2009-09-30",
              "val": 212748000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2009-07-01",
              "end": "2009-09-30",
              "val": 75092000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2009Q3"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 295215000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-03-31",
              "val": 85422000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2010Q1"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 188243000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-04-01",
              "end": "2010-06-30",
              "val": 102821000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2010Q2"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 279413000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-07-01",
              "end": "2010-09-30",
              "val": 91170000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2010Q3"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 366955000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 99437000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2011Q1"
            }
          ]
        }
      },
      "SalesRevenueNet": {
        "label": "Revenue, Net (Deprecated 2018-01-31)",
        "description": "Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.",
        "units": {
          "USD": [
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 312333000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 198286000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2010-04-01",
              "end": "2010-06-30",
              "val": 108196000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2010Q2"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 294233000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2010-07-01",
              "end": "2010-09-30",
              "val": 95947000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2010Q3"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 387126000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 387126000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 104856000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2011Q1"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 224942000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 224942000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2011-04-01",
              "end": "2011-06-30",
              "val": 120086000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-04-01",
              "end": "2011-06-30",
              "val": 120086000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2011Q2"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 350836000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 350836000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": 125894000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": 125894000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2011Q3"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 479741000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 479741000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 479741000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 135079000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 135079000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 280705000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 280705000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": 145626000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": 145626000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2012Q2"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 417201000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 417201000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 136496000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 136496000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2012Q3"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 560041000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 560041000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 560041000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 153580000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 153580000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 317408000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 317408000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-04-01",
              "end": "2013-06-30",
              "val": 163828000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-04-01",
              "end": "2013-06-30",
              "val": 163828000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2013Q2"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 481914000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 481914000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 164506000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 164506000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2013Q3"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 660206000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 660206000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 660206000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 180646000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 180646000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 373177000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 373177000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2014-04-01",
              "end": "2014-06-30",
              "val": 192531000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-04-01",
              "end": "2014-06-30",
              "val": 192531000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2014Q2"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 563053000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 563053000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": 189876000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": 189876000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2014Q3"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 761653000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 761653000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 761653000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 198086000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 198086000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 407574000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 407574000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2015-04-01",
              "end": "2015-06-30",
              "val": 209488000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-04-01",
              "end": "2015-06-30",
              "val": 209488000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2015Q2"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 615210000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 615210000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2015-07-01",
              "end": "2015-09-30",
              "val": 207636000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-07-01",
              "end": "2015-09-30",
              "val": 207636000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2015Q3"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 845486000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 845486000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 845486000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 238720000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 238720000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 508082000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 508082000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-04-01",
              "end": "2016-06-30",
              "val": 269362000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-04-01",
              "end": "2016-06-30",
              "val": 269362000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2016Q2"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 786671000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 786671000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": 278589000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": 278589000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2016Q3"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 1079874000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 1079874000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 310341000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 310341000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 666823000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 666823000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-04-01",
              "end": "2017-06-30",
              "val": 356482000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-04-01",
              "end": "2017-06-30",
              "val": 356482000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2017Q2"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 1052090000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 1052090000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": 385267000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": 385267000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2017Q3"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 1473413000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 436924000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 436924000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 927183000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": 490259000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 1432472000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 505289000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 548971000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1"
            }
          ]
        }
      },
      "SecuritiesOwnedNotReadilyMarketable": {
        "label": "Securities Owned Not Readily Marketable (Deprecated 2019-01-31)",
        "description": "Aggregate carrying value of owned private equity or other securities for which a quoted market price is not readily determinable, the value of which has been determined by management based upon fair value methods, including pricing of similar securities and valuation techniques and is included in the schedule of financial condition or the balance sheet.",
        "units": {
          "USD": [
            {
              "end": "2017-12-31",
              "val": 0,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 0,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 0,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-06-30",
              "val": 4862000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 9862000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 9862000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 9862000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 5887000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            }
          ]
        }
      },
      "SecurityDeposit": {
        "label": "Security Deposit",
        "description": "The amount of an asset, typically cash, provided to a counterparty to provide certain assurance of performance by the entity pursuant to the terms of a written or oral agreement, such as a lease.",
        "units": {
          "USD": [
            {
              "end": "2017-12-31",
              "val": 3557000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 3557000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 3557000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 3557000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 3721000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 3734000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 4259000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 5162000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 5162000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 5038000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            }
          ]
        }
      },
      "SellingAndMarketingExpense": {
        "label": "Selling and Marketing Expense",
        "description": "The aggregate total amount of expenses directly related to the marketing or selling of products or services.",
        "units": {
          "USD": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": 115062000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2009-01-01",
              "end": "2009-06-30",
              "val": 56962000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2009-04-01",
              "end": "2009-06-30",
              "val": 29108000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2009Q2"
            },
            {
              "start": "2009-01-01",
              "end": "2009-09-30",
              "val": 84649000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2009-07-01",
              "end": "2009-09-30",
              "val": 27687000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2009Q3"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 112542000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 112542000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-03-31",
              "val": 27946000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2010Q1"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 56885000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 56885000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2010-04-01",
              "end": "2010-06-30",
              "val": 28939000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-04-01",
              "end": "2010-06-30",
              "val": 28939000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2010Q2"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 83790000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 83790000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2010-07-01",
              "end": "2010-09-30",
              "val": 26905000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-07-01",
              "end": "2010-09-30",
              "val": 26905000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2010Q3"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 114013000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 114013000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 114013000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 32821000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 32821000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2011Q1"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 71407000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 71407000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2011-04-01",
              "end": "2011-06-30",
              "val": 38586000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-04-01",
              "end": "2011-06-30",
              "val": 38586000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2011Q2"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 106062000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 106062000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": 34655000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": 34655000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2011Q3"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 142174000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 142174000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 142174000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 38717000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 38717000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 77804000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 77804000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": 39087000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": 39087000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2012Q2"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 114272000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 114272000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 36468000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 36468000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2012Q3"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 152041000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 152041000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 152041000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 42281000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 42281000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 90128000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 90128000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-04-01",
              "end": "2013-06-30",
              "val": 47847000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-04-01",
              "end": "2013-06-30",
              "val": 47847000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2013Q2"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 135352000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 135352000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 45224000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 45224000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2013Q3"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 180046000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 180046000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 52888000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 82067000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 109274000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 165522000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2014-04-01",
              "end": "2014-06-30",
              "val": 56386000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-04-01",
              "end": "2014-06-30",
              "val": 83455000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2014Q2"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 161642000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 246175000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": 52368000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": 80653000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2014Q3"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 217262000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 332068000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 88281000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 188906000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-04-01",
              "end": "2015-06-30",
              "val": 100625000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 290657000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-07-01",
              "end": "2015-09-30",
              "val": 101751000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 390239000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 390239000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 490653000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 490653000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 490653000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 665777000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 665777000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 665777000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 852404000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 852404000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 1072053000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019"
            }
          ]
        }
      },
      "SellingGeneralAndAdministrativeExpense": {
        "label": "Selling, General and Administrative Expense",
        "description": "The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc.",
        "units": {
          "USD": [
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 292798000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 332068000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 88281000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 188906000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2015-04-01",
              "end": "2015-06-30",
              "val": 100625000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2015Q2"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 290657000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2015-07-01",
              "end": "2015-09-30",
              "val": 101751000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2015Q3"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 390239000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 112210000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 112210000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 233677000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 233677000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-04-01",
              "end": "2016-06-30",
              "val": 121467000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-04-01",
              "end": "2016-06-30",
              "val": 121467000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2016Q2"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 360385000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 360385000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": 126708000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": 126708000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2016Q3"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 151148000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 151148000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 314112000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 314112000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-04-01",
              "end": "2017-06-30",
              "val": 162964000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-04-01",
              "end": "2017-06-30",
              "val": 162964000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2017Q2"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 483636000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 483636000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": 169524000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": 169524000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2017Q3"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 199625000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 199625000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 411712000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 411712000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": 212087000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": 212087000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2018Q2"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 625585000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 625585000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 213873000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 213873000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2018Q3"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 852404000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 247110000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 247110000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 515058000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 515058000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 267948000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 267948000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2019Q2"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 792572000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 792572000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 277514000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 277514000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2019Q3"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 1072053000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 1072053000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 282906000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 282906000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 539873000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 539873000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": 256967000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": 256967000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2020Q2"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 852365000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 852365000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 312492000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 312492000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2020Q3"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 1200757000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 1200757000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 1200757000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 397115000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 397115000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 829036000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 829036000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 431921000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 431921000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2021Q2"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 1257445000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 1257445000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 428409000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 428409000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2021Q3"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 1708640000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 1708640000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 1708640000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 439457000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 439457000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 865855000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 865855000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": 426398000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": 426398000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2022Q2"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 1264402000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 1264402000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": 398547000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": 398547000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2022Q3"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 1674469000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 1674469000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 1674469000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 439691000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 439691000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 892884000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 892884000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 453193000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 453193000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2023Q2"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 1300876000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 1300876000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 407992000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 407992000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2023Q3"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 1703379000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 1703379000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 1703379000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 451822000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 451822000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 904084000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 904084000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 452262000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 452262000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2024Q2"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 1338222000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 1338222000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 434138000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 434138000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2024Q3"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 1763193000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 1763193000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 447629000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 447629000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 896315000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 896315000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 448686000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 448686000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q2"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 1314115000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-07-01",
              "end": "2025-09-30",
              "val": 417800000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 1755791000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": 465342000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": 928013000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2026-04-01",
              "end": "2026-06-30",
              "val": 462671000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2"
            }
          ]
        }
      },
      "SeveranceCosts1": {
        "label": "Severance Costs",
        "description": "Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation.",
        "units": {
          "USD": [
            {
              "end": "2019-03-05",
              "val": 1300000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2019-03-05",
              "val": 1300000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q1I"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 1300000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 1300000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 1300000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 1300000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 1300000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 1300000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 1300000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            }
          ]
        }
      },
      "ShareBasedCompensation": {
        "label": "Share-based Payment Arrangement, Noncash Expense",
        "description": "Amount of noncash expense for share-based payment arrangement.",
        "units": {
          "USD": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": 17057000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2009-01-01",
              "end": "2009-06-30",
              "val": 8024000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2009-01-01",
              "end": "2009-09-30",
              "val": 12011000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 15088000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 15088000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-03-31",
              "val": 3473000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2010Q1"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 7724000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 7724000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 12138000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 12138000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2010-07-01",
              "end": "2010-09-30",
              "val": 4414000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2010Q3"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 16072000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 16072000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 16072000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 4279000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 4279000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2011Q1"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 9252000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 9252000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 14206000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 14206000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": 4954000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 19165000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 19165000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 19165000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 4863000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 4863000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 10142000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 10142000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 15504000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 15504000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 21483000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 21483000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 21483000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 6410000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 6410000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 13675000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 13675000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 21265000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 21265000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 26438000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 26438000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 26438000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 9132000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 9132000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 19438000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 19438000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 29348000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 29348000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 39823000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 39823000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 39823000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 11648000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 11648000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 24474000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 24474000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 39135000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 39135000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 52943000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 52943000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 52943000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 12524000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 12524000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 26223000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 26223000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 39934000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 39934000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 54148000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 54148000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 54148000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 14812000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 14812000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 29057000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 29057000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 44024000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 44024000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 58854000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 58854000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 58854000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 15830000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 15830000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 32720000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 32720000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 51918000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 51918000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 70763000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 70763000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 70763000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 21044000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 21044000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 43511000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 43511000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 67687000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 67687000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 88184000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 88184000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 88184000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 22927000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 22927000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 47934000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 47934000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": 25007000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2020Q2"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 73163000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 73163000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 25229000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2020Q3"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 98427000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 98427000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 98427000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 27241000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 27241000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 56096000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 56096000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 28855000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 28855000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2021Q2"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 84498000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 84498000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 28402000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 28402000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2021Q3"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 114336000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 114336000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 114336000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 31621000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 31621000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 65761000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 65761000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": 34140000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": 34140000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2022Q2"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 98679000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 98679000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": 32918000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": 32918000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2022Q3"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 133367000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 133367000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 133367000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 37735000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 37735000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 75595000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 75595000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 37860000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 37860000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2023Q2"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 115197000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 115197000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 39602000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 39602000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2023Q3"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 154026000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 154026000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 154026000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 38788000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 38788000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 85816000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 85816000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 47028000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 47028000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2024Q2"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 134855000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 134855000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 49039000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 49039000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2024Q3"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 173703000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 173703000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 44997000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 44997000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 93205000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 93205000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 48208000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 48208000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q2"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 141582000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-07-01",
              "end": "2025-09-30",
              "val": 48377000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 185870000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": 40924000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": 86484000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2026-04-01",
              "end": "2026-06-30",
              "val": 45560000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2"
            }
          ]
        }
      },
      "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber": {
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number",
        "description": "The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.",
        "units": {
          "shares": [
            {
              "end": "2010-12-31",
              "val": 0,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2010Q4I"
            }
          ]
        }
      },
      "ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate": {
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate",
        "description": "The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.",
        "units": {
          "pure": [
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 0,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": 0,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2011Q3"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 0,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 0,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 0,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 0,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 0,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2012Q3"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 0,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 0,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 0,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 0,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 0,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 0,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 0,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2013Q3"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 0,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 0,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 0,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 0,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 0,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 0,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": 0,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": 0,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2014Q3"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 0,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 0,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 0,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-04-01",
              "end": "2015-06-30",
              "val": 0,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2015Q2"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 0,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-07-01",
              "end": "2015-09-30",
              "val": 0,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-07-01",
              "end": "2015-09-30",
              "val": 0,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2015Q3"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 0,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 0,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 0,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-04-01",
              "end": "2016-06-30",
              "val": 0,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 0,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": 0,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": 0,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2016Q3"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 0,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 0,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 0,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 0,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 0,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 0,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": 0,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": 0,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2017Q3"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 0,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 0,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 0,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 0,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 0,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 0,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 0,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 0,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2018Q3"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 0,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 0,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 0,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 0,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 0,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 0,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 0,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 0,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2019Q3"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 0,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 0,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 0,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 0,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3"
            }
          ]
        }
      },
      "ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate": {
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate",
        "description": "The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.",
        "units": {
          "pure": [
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 0.432,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": 0.449,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2011Q3"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 0.537,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 0.497,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 0.497,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 0.48,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 0.48,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2012Q3"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 0.467,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 0.467,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 0.467,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 0.449,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 0.449,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 0.373,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 0.373,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2013Q3"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 0.423,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 0.423,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 0.423,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 0.423,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 0.388,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 0.388,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": 0.358,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": 0.358,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2014Q3"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 0.319,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 0.319,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 0.319,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-04-01",
              "end": "2015-06-30",
              "val": 0.319,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2015Q2"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 0.311,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 0.311,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2015-07-01",
              "end": "2015-09-30",
              "val": 0.279,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-07-01",
              "end": "2015-09-30",
              "val": 0.279,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2015Q3"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 0.337,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 0.337,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 0.337,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-04-01",
              "end": "2016-06-30",
              "val": 0.337,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 0.305,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 0.305,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": 0.274,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": 0.274,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2016Q3"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 0.261,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 0.261,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 0.261,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 0.261,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 0.268,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 0.268,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": 0.288,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": 0.288,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2017Q3"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 0.357,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 0.357,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 0.357,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 0.357,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 0.352,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 0.352,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 0.357,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 0.357,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2018Q3"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 0.486,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 0.486,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 0.486,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 0.486,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 0.501,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 0.501,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 0.52,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 0.52,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2019Q3"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 0.417,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 0.417,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 0.55,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 0.717,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3"
            }
          ]
        }
      },
      "ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate": {
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate",
        "description": "The risk-free interest rate assumption that is used in valuing an option on its own shares.",
        "units": {
          "pure": [
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 0.004,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": 0.003,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2011Q3"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 0.002,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 0.002,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 0.002,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 0.002,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 0.002,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2012Q3"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 0.002,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 0.002,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 0.0018,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 0.002,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 0.002,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 0.002,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 0.002,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2013Q3"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 0.002,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 0.002,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 0.0017,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 0.0017,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 0.002,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 0.002,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": 0.0024,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": 0.002,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2014Q3"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 0.0026,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 0.0026,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 0.0026,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-04-01",
              "end": "2015-06-30",
              "val": 0.0026,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2015Q2"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 0.0029,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 0.0029,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2015-07-01",
              "end": "2015-09-30",
              "val": 0.0041,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-07-01",
              "end": "2015-09-30",
              "val": 0.0041,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2015Q3"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 0.0077,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 0.0077,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 0.008,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-04-01",
              "end": "2016-06-30",
              "val": 0.0077,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 0.0065,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 0.007,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": 0.0053,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": 0.005,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2016Q3"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 0.0093,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 0.009,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 0.009,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 0.009,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 0.01,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 0.01,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": 0.012,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": 0.012,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2017Q3"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 0.019,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 0.019,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 0.019,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 0.019,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 0.022,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 0.022,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 0.025,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 0.025,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2018Q3"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 0.025,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 0.025,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 0.025,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 0.025,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 0.022,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 0.022,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 0.018,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 0.018,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2019Q3"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 0.015,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 0.015,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 0.009,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 0.001,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3"
            }
          ]
        }
      },
      "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber": {
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number",
        "description": "The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.",
        "units": {
          "shares": [
            {
              "end": "2011-09-30",
              "val": 5099000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 4795000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 4341000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 3667000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 2788000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 2733000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 2158000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 1731000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 1561000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 1205000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 783000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 760000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 692000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 655000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 638000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 556000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 539000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 496000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 466000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 366000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 272000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 222000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 136000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 117000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 108000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 75000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 60000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 14000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 12000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 8000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2018Q4I"
            }
          ]
        }
      },
      "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice": {
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price",
        "description": "The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.",
        "units": {
          "USD/shares": [
            {
              "end": "2011-09-30",
              "val": 13.05,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 13.39,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 13.99,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 14.05,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 14.51,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 14.62,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 14.85,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 14.95,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 15.02,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 15.65,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 14.96,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 15.04,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 15.12,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 15.43,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 15.74,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 15.47,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 15.36,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 15.14,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 15.37,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 15.13,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 15.52,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 14.9,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 13.33,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 13.39,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 13.47,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 11.36,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 11.28,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 7.96,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 7.99,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 8.07,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2018Q4I"
            }
          ]
        }
      },
      "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm": {
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term (Deprecated 2012-01-31)",
        "description": "The weighted average period between the balance sheet date and expiration for all vested portions of options outstanding and currently exercisable (or convertible) under the plan, which may be expressed in a decimal value for number of years.",
        "units": {
          "Y": [
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 4.64,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            }
          ],
          "Year": [
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 4.8,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 4.64,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 4.49,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1"
            }
          ]
        }
      },
      "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue": {
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value",
        "description": "Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.",
        "units": {
          "USD": [
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 3200000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 9200000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 9200000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 23700000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 23700000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 23700000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 50900000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 50900000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 50900000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 46700000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 46700000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 46700000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 24500000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 24500000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 24500000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 7400000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 7400000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 7400000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 18200000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 18200000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 18200000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 18100000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 18100000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 18100000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 17600000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 17600000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 17600000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 2000000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 2000000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019"
            }
          ]
        }
      },
      "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice": {
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price (Deprecated 2012-01-31)",
        "description": "The weighted average price at which option holders acquired shares when converting their stock options into shares under the plan during the reporting period.",
        "units": {
          "USD": [
            {
              "end": "2009-12-31",
              "val": 7.05,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009Q4I"
            },
            {
              "end": "2010-12-31",
              "val": 7.87,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-09-30",
              "val": 10.9,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 10.76,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 10.54,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            }
          ]
        }
      },
      "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod": {
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period",
        "description": "For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired.",
        "units": {
          "shares": [
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 369000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 261000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 110000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 152000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 17000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 21000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 29000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 70000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 65000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 72000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 79000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 92000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 1000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 2000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 4000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 5000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 0,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 0,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 0,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 0,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 0,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 0,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 0,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 0,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 4000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 4000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 4000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 4000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 0,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 0,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 0,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2018"
            }
          ]
        }
      },
      "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice": {
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price",
        "description": "Weighted average price of options that were either forfeited or expired.",
        "units": {
          "USD/shares": [
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 12.45,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 14.63,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 15.29,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 15.54,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 15.38,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 17.14,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 15.35,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 24.47,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 18.33,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 18.32,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 0,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 0,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 0,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 0,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 0,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 0,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 0,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 0,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 18.16,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 18.16,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 18.16,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 18.16,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 0,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 0,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 0,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2018"
            }
          ]
        }
      },
      "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod": {
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures",
        "description": "Net number of share options (or share units) granted during the period.",
        "units": {
          "shares": [
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 421000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            }
          ]
        }
      },
      "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross": {
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross",
        "description": "Gross number of share options (or share units) granted during the period.",
        "units": {
          "shares": [
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 1134000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 1501000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 421000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 0,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 0,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 0,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 0,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 0,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 0,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 0,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 0,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 0,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 0,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 0,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 0,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 0,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 0,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 0,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 0,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 0,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 0,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 0,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 0,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 0,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2017"
            }
          ]
        }
      },
      "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice": {
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price (Deprecated 2012-01-31)",
        "description": "The weighted average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on stock options awarded under the plan during the reporting period.",
        "units": {
          "USD": [
            {
              "end": "2009-12-31",
              "val": 8.62,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009Q4I"
            },
            {
              "end": "2010-12-31",
              "val": 17.65,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-09-30",
              "val": 22.07,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 22.07,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011Q4I"
            }
          ]
        }
      },
      "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue": {
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value",
        "description": "The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.",
        "units": {
          "USD/shares": [
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 7.29,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": 7.46,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2011Q3"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 9.08,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 11.1,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 11.1,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 11.99,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 11.99,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2012Q3"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 11.17,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 11.17,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 11.17,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 11.7,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 11.7,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 13.84,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 13.84,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2013Q3"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 17.97,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 17.97,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 17.97,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 17.97,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 17.15,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 17.15,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": 16.44,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": 16.44,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2014Q3"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 15.98,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 15.98,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 15.98,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-04-01",
              "end": "2015-06-30",
              "val": 15.98,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2015Q2"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 16.19,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 16.19,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2015-07-01",
              "end": "2015-09-30",
              "val": 17.1,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-07-01",
              "end": "2015-09-30",
              "val": 17.1,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2015Q3"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 19.96,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 19.96,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 19.96,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-04-01",
              "end": "2016-06-30",
              "val": 19.96,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 22.23,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 22.23,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": 24.44,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": 24.44,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2016Q3"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 26.09,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 26.09,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 26.09,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 26.09,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 31.36,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 31.36,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": 47.02,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": 47.02,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2017Q3"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 78.38,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 78.38,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 78.38,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 78.38,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 94.71,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 94.71,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 109.58,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 109.58,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2018Q3"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 90.36,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 90.36,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 90.36,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 90.36,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 86.02,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 86.02,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 80.42,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 80.42,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2019Q3"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 80.54,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 80.54,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 96.94,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 117.32,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3"
            }
          ]
        }
      },
      "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue": {
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value",
        "description": "Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.",
        "units": {
          "USD": [
            {
              "end": "2011-12-31",
              "val": 58922000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 70414000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 85831000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 76880000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 41088000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 46054000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 43561000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 57550000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 54231000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 30814000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 32704000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 26098000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 26933000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 24324000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 26247000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 22300000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 25163000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 26699000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 23942000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 21248000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 18058000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 13809000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 16049000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 18711000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 15752000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 14369000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 4651000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 4534000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 1649000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2018Q4I"
            }
          ]
        }
      },
      "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber": {
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number",
        "description": "Number of options outstanding, including both vested and non-vested options.",
        "units": {
          "shares": [
            {
              "end": "2008-12-31",
              "val": 7309000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2008Q4I"
            },
            {
              "end": "2009-12-31",
              "val": 7488000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009Q4I"
            },
            {
              "end": "2010-12-31",
              "val": 7815000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2010-12-31",
              "val": 7815000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-09-30",
              "val": 6772000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 6190000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 6190000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2011-12-31",
              "val": 6190000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "end": "2011-12-31",
              "val": 6190000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "end": "2011-12-31",
              "val": 6190000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2011-12-31",
              "val": 3276000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "end": "2011-12-31",
              "val": 3276000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "end": "2011-12-31",
              "val": 3276000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 5477000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 4566000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 3526000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 3276000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 3276000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 2551000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 2023000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 1767000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 1321000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 1321000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "end": "2013-12-31",
              "val": 1321000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "end": "2013-12-31",
              "val": 1321000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "end": "2013-12-31",
              "val": 1321000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 848000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 805000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 719000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 668000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 668000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2014-12-31",
              "val": 668000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2014-12-31",
              "val": 668000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "end": "2014-12-31",
              "val": 668000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 640000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 556000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 539000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 496000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 496000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2015-12-31",
              "val": 496000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2015-12-31",
              "val": 496000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "end": "2015-12-31",
              "val": 496000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 466000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 366000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 272000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 222000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 222000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "end": "2016-12-31",
              "val": 222000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
              "val": 222000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "end": "2016-12-31",
              "val": 222000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 136000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 117000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 108000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 75000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 75000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 75000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 75000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 75000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 60000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 14000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 12000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 8000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-12-31",
              "val": 0,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-12-31",
              "val": 0,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2020Q4I"
            }
          ]
        }
      },
      "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice": {
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price",
        "description": "Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.",
        "units": {
          "USD/shares": [
            {
              "end": "2008-12-31",
              "val": 11.63,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2008Q4I"
            },
            {
              "end": "2009-12-31",
              "val": 11.49,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009Q4I"
            },
            {
              "end": "2010-12-31",
              "val": 12.99,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2010-12-31",
              "val": 12.99,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-09-30",
              "val": 13.94,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 14.23,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 14.23,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 14.69,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 14.66,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 15.17,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 15.21,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 15.21,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 15.46,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 15.51,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 15.53,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 16.08,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 16.08,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "end": "2013-12-31",
              "val": 16.08,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "end": "2013-12-31",
              "val": 16.08,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 15.47,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 15.41,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 15.4,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 15.57,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 15.57,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2014-12-31",
              "val": 15.57,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2014-12-31",
              "val": 15.57,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "end": "2014-12-31",
              "val": 15.57,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 15.76,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 15.47,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 15.36,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 15.14,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 15.14,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2015-12-31",
              "val": 15.14,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2015-12-31",
              "val": 15.14,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "end": "2015-12-31",
              "val": 15.14,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 15.37,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 15.13,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 15.52,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 14.9,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 14.9,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "end": "2016-12-31",
              "val": 14.9,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
              "val": 14.9,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "end": "2016-12-31",
              "val": 14.9,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 13.33,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 13.39,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 13.47,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 11.36,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 11.36,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 11.36,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 11.36,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 11.36,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 11.28,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 7.96,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 7.99,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 8.07,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2018Q4I"
            }
          ]
        }
      },
      "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue": {
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value",
        "description": "Amount by which current fair value of underlying stock exceeds exercise price of fully vested and expected to vest options outstanding. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.",
        "units": {
          "USD": [
            {
              "end": "2011-09-30",
              "val": 19510000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 58271000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 69709000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 84967000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 76098000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 40876000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 45826000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 43561000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 57368000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 54102000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 30755000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 32662000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 26085000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 26930000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 24324000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 26247000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 22300000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 25163000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 26699000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 23942000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 21248000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 18058000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 13809000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 16049000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 18711000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 15752000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 14369000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 4651000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 4534000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 1649000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2018Q4I"
            }
          ]
        }
      },
      "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber": {
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number",
        "description": "Number of fully vested and expected to vest options outstanding that can be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.",
        "units": {
          "shares": [
            {
              "end": "2011-09-30",
              "val": 6626000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 6079000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 5402000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 4508000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 3483000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 3252000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 2535000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 2023000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 1760000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 1317000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 846000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 804000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 719000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 668000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 640000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 556000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 539000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 496000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 466000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 366000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 272000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 222000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 136000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 117000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 108000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 75000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 60000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 14000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 12000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 8000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2018Q4I"
            }
          ]
        }
      },
      "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice": {
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price",
        "description": "Weighted-average exercise price, at which grantee can acquire shares reserved for issuance, for fully vested and expected to vest options outstanding. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.",
        "units": {
          "USD/shares": [
            {
              "end": "2011-09-30",
              "val": 13.85,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 14.16,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 14.65,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 14.61,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 15.12,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 15.18,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 15.43,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 15.51,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 15.51,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 16.06,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 15.46,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 15.41,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 15.39,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 15.57,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 15.76,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 15.47,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 15.36,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 15.14,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 15.37,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 15.13,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 15.52,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 14.9,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 13.33,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 13.39,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 13.47,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 11.36,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 11.28,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 7.96,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 7.99,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 8.07,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2018Q4I"
            }
          ]
        }
      },
      "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm": {
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term (Deprecated 2012-01-31)",
        "description": "The weighted-average period between the balance sheet date and expiration date for fully vested and expected to vest options outstanding, which may be expressed in a decimal value for number of years.",
        "units": {
          "Y": [
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 4.77,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            }
          ],
          "Year": [
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 5.1,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 4.92,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 4.73,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1"
            }
          ]
        }
      },
      "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedInPeriodFairValue": {
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value (Deprecated 2013-01-31)",
        "description": "Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.",
        "units": {
          "USD": [
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 7000000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 9200000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 5000000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2012"
            }
          ]
        }
      },
      "ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice": {
        "label": "Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price",
        "description": "Weighted average price at which option holders acquired shares when converting their stock options into shares.",
        "units": {
          "USD/shares": [
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 13.03,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 14.57,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 17.08,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 16.88,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 16.58,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 11.19,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 16.05,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 16.47,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 16.82,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 11.69,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 15.17,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 14.69,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 15.33,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 17.35,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 16.53,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 16.19,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 16.66,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 11.65,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 12.13,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 11.99,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 11.76,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 8.07,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019"
            }
          ]
        }
      },
      "ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice": {
        "label": "Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price",
        "description": "Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.",
        "units": {
          "USD/shares": [
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 0,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 0,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 0,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 0,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 0,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 0,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 0,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 0,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 0,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 0,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 0,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 0,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 0,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2017"
            }
          ]
        }
      },
      "SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1": {
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value",
        "description": "Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.",
        "units": {
          "USD": [
            {
              "end": "2011-09-30",
              "val": 17096000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 49627000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 58853000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 71187000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 62627000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 35903000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 40263000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 38241000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 51635000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 49996000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 28857000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 31167000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 25294000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 26504000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 24268000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 26247000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 22300000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 25163000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 26699000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 23942000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 21248000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 18058000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 13809000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 16049000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 18711000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 15752000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 14369000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 4651000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 4534000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 1649000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2018Q4I"
            }
          ]
        }
      },
      "SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm1": {
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term (Deprecated 2012-01-31)",
        "description": "The weighted average period between the balance sheet date and expiration for all awards outstanding under the plan, which may be expressed in a decimal value for number of years.",
        "units": {
          "Y": [
            {
              "end": "2012-06-30",
              "val": 4.78,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            }
          ],
          "Year": [
            {
              "end": "2011-12-31",
              "val": 4.93,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 4.74,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            }
          ]
        }
      },
      "SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1": {
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value",
        "description": "Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.",
        "units": {
          "USD": [
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 9200000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 5000000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 5000000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 3700000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 3700000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 3700000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 700000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 700000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 100000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015"
            }
          ]
        }
      },
      "SharePrice": {
        "label": "Share Price",
        "description": "Price of a single share of a number of saleable stocks of a company.",
        "units": {
          "USD/shares": [
            {
              "end": "2016-05-03",
              "val": 74.9,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-09-30",
              "val": 93.21,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            }
          ]
        }
      },
      "StandardProductWarrantyAccrual": {
        "label": "Standard Product Warranty Accrual",
        "description": "Amount as of the balance sheet date of the aggregate standard product warranty liability. Does not include the balance for the extended product warranty liability.",
        "units": {
          "USD": [
            {
              "end": "2009-12-31",
              "val": 2376000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2009-12-31",
              "val": 2376000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2009-12-31",
              "val": 2376000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009Q4I"
            },
            {
              "end": "2010-06-30",
              "val": 2535000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2010Q2I"
            },
            {
              "end": "2010-09-30",
              "val": 2658000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2010Q3I"
            },
            {
              "end": "2010-12-31",
              "val": 2607000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2010-12-31",
              "val": 2607000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2010-12-31",
              "val": 2607000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2010-12-31",
              "val": 2607000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2010-12-31",
              "val": 2607000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "end": "2010-12-31",
              "val": 2607000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "end": "2010-12-31",
              "val": 2607000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-03-31",
              "val": 2766000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2011Q1I"
            },
            {
              "end": "2011-06-30",
              "val": 3107000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2011-06-30",
              "val": 3107000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 3273000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2011-09-30",
              "val": 3273000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 3177000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 3177000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2011-12-31",
              "val": 3177000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "end": "2011-12-31",
              "val": 3177000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "end": "2011-12-31",
              "val": 3177000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2011-12-31",
              "val": 3177000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "end": "2011-12-31",
              "val": 3177000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "end": "2011-12-31",
              "val": 3177000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "end": "2011-12-31",
              "val": 3177000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 3151000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2012-03-31",
              "val": 3151000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 3513000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "end": "2012-06-30",
              "val": 3513000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 4130000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "end": "2012-09-30",
              "val": 4130000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 4050000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 4050000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "end": "2012-12-31",
              "val": 4050000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "end": "2012-12-31",
              "val": 4050000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "end": "2012-12-31",
              "val": 4050000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2012-12-31",
              "val": 4050000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "end": "2012-12-31",
              "val": 4050000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "end": "2012-12-31",
              "val": 4050000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 4129000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "end": "2013-03-31",
              "val": 4129000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 4453000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "end": "2013-06-30",
              "val": 4453000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 3806000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "end": "2013-09-30",
              "val": 3806000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 3104000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 3104000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "end": "2013-12-31",
              "val": 3104000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "end": "2013-12-31",
              "val": 3104000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "end": "2013-12-31",
              "val": 3104000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2013-12-31",
              "val": 3104000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2013-12-31",
              "val": 3104000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2013-12-31",
              "val": 3104000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "end": "2013-12-31",
              "val": 3104000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 3048000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "end": "2014-03-31",
              "val": 3048000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2014-03-31",
              "val": 3252000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 3252000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 3263000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "end": "2014-09-30",
              "val": 3263000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 3148000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 3148000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2014-12-31",
              "val": 3148000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2014-12-31",
              "val": 3148000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "end": "2014-12-31",
              "val": 3148000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2014-12-31",
              "val": 3148000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2014-12-31",
              "val": 3148000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2014-12-31",
              "val": 3148000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "end": "2014-12-31",
              "val": 3148000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 3005000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2015-03-31",
              "val": 3005000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 2986000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2015-06-30",
              "val": 2986000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 2711000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "end": "2015-09-30",
              "val": 2711000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 2638000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 2638000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2015-12-31",
              "val": 2638000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2015-12-31",
              "val": 2638000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "end": "2015-12-31",
              "val": 2638000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2015-12-31",
              "val": 2638000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "end": "2015-12-31",
              "val": 2638000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2015-12-31",
              "val": 2638000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "end": "2015-12-31",
              "val": 2638000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 2704000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2016-03-31",
              "val": 2704000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 2830000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2016-06-30",
              "val": 2830000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 3397000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "end": "2016-09-30",
              "val": 3397000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 3841000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 3841000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "end": "2016-12-31",
              "val": 3841000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
              "val": 3841000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "end": "2016-12-31",
              "val": 3841000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 3841000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2016-12-31",
              "val": 3841000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2016-12-31",
              "val": 3841000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2016-12-31",
              "val": 3841000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 4301000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "end": "2017-03-31",
              "val": 4301000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 5028000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2017-06-30",
              "val": 5028000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 5055000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "end": "2017-09-30",
              "val": 5055000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 5929000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 5929000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 5929000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 5929000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 5929000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 5929000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2017-12-31",
              "val": 5929000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2017-12-31",
              "val": 5929000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2017-12-31",
              "val": 5929000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 6657000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2018-03-31",
              "val": 6657000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 7286000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2018-06-30",
              "val": 7286000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 8026000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2018-09-30",
              "val": 8026000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 8551000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 8551000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 8551000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 8551000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 8551000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 8551000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2018-12-31",
              "val": 8551000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2018-12-31",
              "val": 8551000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2018-12-31",
              "val": 8551000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 10233000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2019-03-31",
              "val": 10233000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 10499000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2019-06-30",
              "val": 10499000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 10802000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2019-09-30",
              "val": 10802000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 11205000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 11205000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2019-12-31",
              "val": 11205000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2019-12-31",
              "val": 11205000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2019-12-31",
              "val": 11205000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2019-12-31",
              "val": 11205000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2019-12-31",
              "val": 11205000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2019-12-31",
              "val": 11205000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2019-12-31",
              "val": 11205000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 11789000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2020-03-31",
              "val": 11789000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-06-30",
              "val": 11629000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2020-06-30",
              "val": 11629000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 11023000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2020-09-30",
              "val": 11023000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 12615000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 12615000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2020-12-31",
              "val": 12615000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2020-12-31",
              "val": 12615000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2020-12-31",
              "val": 12615000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2020-12-31",
              "val": 12615000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2020-12-31",
              "val": 12615000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2020-12-31",
              "val": 12615000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2020-12-31",
              "val": 12615000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 13735000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2021-03-31",
              "val": 13735000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 14446000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2021-06-30",
              "val": 14446000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 14975000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2021-09-30",
              "val": 14975000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 16169000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 16169000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 16169000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 16169000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 16169000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2021-12-31",
              "val": 16169000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 16169000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 16169000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2021-12-31",
              "val": 16169000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 16093000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2022-03-31",
              "val": 16093000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 16495000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2022-06-30",
              "val": 16495000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 16419000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2022-09-30",
              "val": 16419000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 17873000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 17873000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 17873000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 17873000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 17873000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2022-12-31",
              "val": 17873000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2022-12-31",
              "val": 17873000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2022-12-31",
              "val": 17873000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2022-12-31",
              "val": 17873000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 18929000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2023-03-31",
              "val": 18929000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 20497000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2023-06-30",
              "val": 20497000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 21875000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2023-09-30",
              "val": 21875000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 22426000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 22426000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 22426000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 22426000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 22426000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 22426000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2023-12-31",
              "val": 22426000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2023-12-31",
              "val": 22426000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 22426000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 24563000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2024-03-31",
              "val": 24563000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 26862000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2024-06-30",
              "val": 26862000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 27195000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2024-09-30",
              "val": 27195000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 31211000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 31211000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2024-12-31",
              "val": 31211000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2024-12-31",
              "val": 31211000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2024-12-31",
              "val": 31211000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2024-12-31",
              "val": 31211000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2024-12-31",
              "val": 31211000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 32598000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2025-03-31",
              "val": 32598000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 37648000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2025-06-30",
              "val": 37648000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 34699000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 24411000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2025-12-31",
              "val": 24411000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 24411000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 14887000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 12224000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "StandardProductWarrantyAccrualAdditionsFromBusinessAcquisition": {
        "label": "Standard Product Warranty Accrual, Additions from Business Acquisition",
        "description": "Amount of increase in the standard product warranty accrual from a business acquisition. Excludes extended product warranties.",
        "units": {
          "USD": [
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 339000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 339000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 350000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 350000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 340000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 340000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 0,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            }
          ]
        }
      },
      "StandardProductWarrantyAccrualCurrent": {
        "label": "Standard Product Warranty Accrual, Current",
        "description": "Amount as of the balance sheet date of the aggregate standard product warranty liability that is expected to be paid within one year or the normal operating cycle, if longer. Does not include the balance for the extended product warranty liability.",
        "units": {
          "USD": [
            {
              "end": "2010-12-31",
              "val": 2607000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2010-12-31",
              "val": 2607000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2010-12-31",
              "val": 2607000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-06-30",
              "val": 3107000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 3273000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 3177000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 3177000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2011-12-31",
              "val": 3177000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "end": "2011-12-31",
              "val": 3177000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "end": "2011-12-31",
              "val": 3177000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 3151000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 3513000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 4130000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 4050000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 4050000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "end": "2012-12-31",
              "val": 4050000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "end": "2012-12-31",
              "val": 4050000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "end": "2012-12-31",
              "val": 4050000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 4129000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 4453000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 3806000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 3104000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 3104000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "end": "2013-12-31",
              "val": 3104000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "end": "2013-12-31",
              "val": 3104000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "end": "2013-12-31",
              "val": 3104000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 3048000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 3252000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 3263000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 3148000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 3148000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2014-12-31",
              "val": 3148000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2014-12-31",
              "val": 3148000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "end": "2014-12-31",
              "val": 3148000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 3005000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 2986000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 2711000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 2638000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 2638000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2015-12-31",
              "val": 2638000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2015-12-31",
              "val": 2638000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "end": "2015-12-31",
              "val": 2638000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 2704000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 2830000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 3397000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 3841000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 3841000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "end": "2016-12-31",
              "val": 3841000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
              "val": 3841000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "end": "2016-12-31",
              "val": 3841000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 4301000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 5028000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 5055000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 5929000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 5929000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 5929000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 5929000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 5929000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 6657000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 7286000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 8026000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 8551000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 8551000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 8551000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 8551000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 10233000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 10499000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 10802000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            }
          ]
        }
      },
      "StandardProductWarrantyAccrualPayments": {
        "label": "Standard Product Warranty Accrual, Decrease for Payments",
        "description": "Amount of decrease in the standard product warranty accrual from payments made in cash or in kind to satisfy claims under the terms of the standard product warranty. Excludes extended product warranties.",
        "units": {
          "USD": [
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 1316000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 1930000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 2562000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 736000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2011Q1"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 1531000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 1531000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 2285000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 2285000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 3089000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 3089000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 914000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 914000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 1777000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 1777000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 2694000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 2694000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 3764000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 3764000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 1184000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 1184000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 2381000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 3057000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 3057000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 3796000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 3796000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 709000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 709000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 1047000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 1047000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 1370000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 1370000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 1946000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 1946000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 583000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 583000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 1138000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 1138000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 1745000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 1745000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 2306000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 2306000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 750000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 750000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 1801000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 1801000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 2681000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 2681000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 3691000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 3691000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 1362000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 1362000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 2503000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 2503000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 3987000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 3987000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 5107000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 5107000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 1631000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 1631000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 4371000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 4371000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 8777000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 8777000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 12437000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 12437000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 1451000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 1451000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 4052000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 4052000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 7178000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 7178000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 9767000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 9767000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 3140000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 3140000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 5396000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 5396000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 8229000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 8229000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 11171000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 11171000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 3160000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 3160000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 7105000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 7105000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 11040000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 11040000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 14659000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 14659000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 3612000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 3612000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 7334000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 7334000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 11109000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 11109000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 14725000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 14725000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 3476000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 3476000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 6797000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 6797000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 10327000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 10327000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 13695000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 13695000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 3312000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 3312000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 6523000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 6523000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 9889000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 9889000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 13177000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 13177000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 3332000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 3332000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 6251000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 6251000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 9108000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 12133000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": 2748000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": 3554000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            }
          ]
        }
      },
      "StandardProductWarrantyAccrualWarrantiesIssued": {
        "label": "Standard Product Warranty Accrual, Increase for Warranties Issued",
        "description": "Amount of increase in the standard product warranty accrual from warranties issued. Excludes extended product warranties.",
        "units": {
          "USD": [
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 1475000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 2212000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 2793000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 895000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2011Q1"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 1692000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 1692000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 2601000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 2601000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 3319000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 3319000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 888000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 888000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 2113000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 2113000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 3647000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 3647000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 4637000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 4637000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 1263000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 1263000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 2784000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 2813000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 2813000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 2850000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 2850000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 653000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 653000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 1195000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 1195000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 1529000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 1529000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 1990000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 1990000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 440000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 440000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 976000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 976000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 1308000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 1308000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 1796000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 1796000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 816000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 816000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 1993000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 1993000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 3440000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 3440000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 4894000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 4894000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 1822000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 1822000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 3690000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 3690000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 5201000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 5201000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 7195000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 7195000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 2359000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 2359000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 5728000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 5728000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 10874000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 10874000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 15059000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 15059000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 3133000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 3133000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 6000000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 6000000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 9429000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 9429000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 12421000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 12421000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 3724000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 3724000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 5820000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 5820000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 8047000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 8047000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 12581000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 12581000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 4280000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 4280000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 8936000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 8936000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 13400000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 13400000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 18213000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 18213000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 3536000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 3536000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 7660000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 7660000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 11359000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 11359000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 16429000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 16429000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 4532000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 4532000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 9421000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 9421000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 14329000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 14329000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 18248000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 18248000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 5449000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 5449000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 10959000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 10959000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 14658000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 14658000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 21962000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 21962000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 4719000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 12688000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 12596000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 5333000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            }
          ]
        }
      },
      "StateAndLocalIncomeTaxExpenseBenefitContinuingOperations": {
        "label": "State and Local Income Tax Expense (Benefit), Continuing Operations",
        "description": "Amount of state and local current and deferred income tax expense (benefit) attributable to continuing operations.",
        "units": {
          "USD": [
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": -1211000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 3300000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 3300000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 1618000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 1618000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 1618000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 1924000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 1924000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 1924000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 2393000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 2393000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 2393000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 3133000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 3133000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 3133000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 2568000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 2568000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 2568000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 5239000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 5239000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 5239000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 5257000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 5257000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 5257000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 6294000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 6294000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 6294000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 9378000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 9378000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 9378000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 6741000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 6741000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 6741000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 22505000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 22505000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 22505000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 22356000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 22356000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 22356000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 25378000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 25378000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 25378000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 17086000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 17086000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 27743000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            }
          ]
        }
      },
      "StockholdersEquity": {
        "label": "Stockholders' Equity Attributable to Parent",
        "description": "Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.",
        "units": {
          "USD": [
            {
              "end": "2007-12-31",
              "val": 161154000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2007Q4I"
            },
            {
              "end": "2008-12-31",
              "val": 218540000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "end": "2008-12-31",
              "val": 218540000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2008Q4I"
            },
            {
              "end": "2009-12-31",
              "val": 273036000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "end": "2009-12-31",
              "val": 273036000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "end": "2009-12-31",
              "val": 273036000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "end": "2009-12-31",
              "val": 273036000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2009-12-31",
              "val": 273036000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2009-12-31",
              "val": 377747000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2009Q4I"
            },
            {
              "end": "2010-06-30",
              "val": 333953000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2010Q2I"
            },
            {
              "end": "2010-09-30",
              "val": 359402000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2010Q3I"
            },
            {
              "end": "2010-12-31",
              "val": 377747000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "end": "2010-12-31",
              "val": 377747000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "end": "2010-12-31",
              "val": 377747000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2010-12-31",
              "val": 377747000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2010-12-31",
              "val": 377747000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2010-12-31",
              "val": 377747000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-03-31",
              "val": 402105000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "end": "2011-03-31",
              "val": 404173000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2011Q1I"
            },
            {
              "end": "2011-06-30",
              "val": 429782000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "end": "2011-06-30",
              "val": 435156000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 456876000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "end": "2011-09-30",
              "val": 462864000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 490781000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 490781000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2011-12-31",
              "val": 490781000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "end": "2011-12-31",
              "val": 490781000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "end": "2011-12-31",
              "val": 490781000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2011-12-31",
              "val": 490781000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2011-12-31",
              "val": 490781000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 523022000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "end": "2012-03-31",
              "val": 531065000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 586295000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 602165000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 581317000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 581317000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "end": "2012-12-31",
              "val": 581317000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "end": "2012-12-31",
              "val": 581317000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "end": "2012-12-31",
              "val": 581317000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2012-12-31",
              "val": 581317000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2012-12-31",
              "val": 581317000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 561118000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 520198000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 575684000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 633970000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 633970000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "end": "2013-12-31",
              "val": 633970000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "end": "2013-12-31",
              "val": 633970000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "end": "2013-12-31",
              "val": 633970000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2013-12-31",
              "val": 633970000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2013-12-31",
              "val": 633970000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 696753000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 675796000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 722456000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 752771000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 752771000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2014-12-31",
              "val": 752771000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2014-12-31",
              "val": 752771000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "end": "2014-12-31",
              "val": 752771000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2014-12-31",
              "val": 752771000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2014-12-31",
              "val": 752771000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 793534000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 769801000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 798259000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 847926000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 847926000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2015-12-31",
              "val": 847926000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2015-12-31",
              "val": 847926000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "end": "2015-12-31",
              "val": 847926000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2015-12-31",
              "val": 847926000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2015-12-31",
              "val": 847926000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 892030000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 909858000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 972310000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 995389000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 995389000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "end": "2016-12-31",
              "val": 995389000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
              "val": 995389000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "end": "2016-12-31",
              "val": 995389000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 999307000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 999307000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 1044875000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 1078288000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 1181958000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 1150370000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 1154288000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 1154288000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 1154288000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 1154288000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 1154288000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2017-12-31",
              "val": 1154288000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2017-12-31",
              "val": 1154288000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2017-12-31",
              "val": 1154288000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 1154288000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 1127460000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2018-03-31",
              "val": 1127460000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-03-31",
              "val": 1127460000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 1218959000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2018-06-30",
              "val": 1218959000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-06-30",
              "val": 1218959000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 1192983000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2018-09-30",
              "val": 1192983000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 1252891000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 1252891000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 1252891000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 1252891000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 1252891000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 1252891000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2018-12-31",
              "val": 1252891000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2018-12-31",
              "val": 1252891000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2018-12-31",
              "val": 1252891000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2018-12-31",
              "val": 1252891000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 1255704000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2019-03-31",
              "val": 1255704000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2019-03-31",
              "val": 1255704000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2019-03-31",
              "val": 1255704000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 1373682000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2019-06-30",
              "val": 1373682000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2019-06-30",
              "val": 1373682000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2019-06-30",
              "val": 1373682000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 1305549000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2019-09-30",
              "val": 1305549000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 1346169000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 1346169000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2019-12-31",
              "val": 1346169000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2019-12-31",
              "val": 1346169000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2019-12-31",
              "val": 1346169000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2019-12-31",
              "val": 1346169000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2019-12-31",
              "val": 1346169000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2019-12-31",
              "val": 1346169000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2019-12-31",
              "val": 1346169000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2019-12-31",
              "val": 1346169000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 2852989000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2020-03-31",
              "val": 2852989000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2020-03-31",
              "val": 2852989000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2020-03-31",
              "val": 2852989000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-06-30",
              "val": 2845045000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2020-06-30",
              "val": 2845045000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2020-06-30",
              "val": 2845045000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2020-06-30",
              "val": 2845045000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 3033471000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2020-09-30",
              "val": 3033471000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 3233865000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 3233865000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2020-12-31",
              "val": 3233865000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2020-12-31",
              "val": 3233865000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2020-12-31",
              "val": 3233865000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2020-12-31",
              "val": 3233865000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2020-12-31",
              "val": 3233865000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2020-12-31",
              "val": 3233865000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2020-12-31",
              "val": 3233865000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2020-12-31",
              "val": 3233865000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 3393576000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2021-03-31",
              "val": 3393576000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2021-03-31",
              "val": 3393576000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-03-31",
              "val": 3393576000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 3384410000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2021-06-30",
              "val": 3384410000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2021-06-30",
              "val": 3384410000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-06-30",
              "val": 3384410000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 3516762000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2021-09-30",
              "val": 3516762000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 3622714000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 3622714000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 3622714000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 3622714000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 3622714000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2021-12-31",
              "val": 3622714000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 3622714000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 3622714000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2021-12-31",
              "val": 3622714000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2021-12-31",
              "val": 3622714000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 3666852000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2022-03-31",
              "val": 3666852000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2022-03-31",
              "val": 3666852000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-03-31",
              "val": 3666852000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 3599081000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2022-06-30",
              "val": 3599081000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2022-06-30",
              "val": 3599081000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-06-30",
              "val": 3599081000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 3694622000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2022-09-30",
              "val": 3694622000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 3601358000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 3601358000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 3601358000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 3601358000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 3601358000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2022-12-31",
              "val": 3601358000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2022-12-31",
              "val": 3601358000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2022-12-31",
              "val": 3601358000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2022-12-31",
              "val": 3601358000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2022-12-31",
              "val": 3601358000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 3480049000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2023-03-31",
              "val": 3480049000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2023-03-31",
              "val": 3480049000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-03-31",
              "val": 3480049000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 3638301000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2023-06-30",
              "val": 3638301000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2023-06-30",
              "val": 3638301000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-06-30",
              "val": 3638301000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 3801866000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2023-09-30",
              "val": 3801866000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 3630489000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 3630489000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 3630489000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 3630489000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 3630489000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 3630489000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2023-12-31",
              "val": 3630489000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2023-12-31",
              "val": 3630489000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 3630489000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 3759860000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2024-03-31",
              "val": 3759860000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2024-03-31",
              "val": 3759860000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2024-03-31",
              "val": 3759860000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 3757908000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2024-06-30",
              "val": 3757908000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2024-06-30",
              "val": 3757908000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2024-06-30",
              "val": 3757908000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 3944354000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2024-09-30",
              "val": 3944354000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 3851985000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 3851985000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2024-12-31",
              "val": 3851985000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2024-12-31",
              "val": 3851985000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2024-12-31",
              "val": 3851985000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2024-12-31",
              "val": 3851985000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2024-12-31",
              "val": 3851985000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 3794243000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2025-03-31",
              "val": 3794243000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2025-03-31",
              "val": 3794243000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-03-31",
              "val": 3794243000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 3912779000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2025-06-30",
              "val": 3912779000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2025-06-30",
              "val": 3912779000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 3957458000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 4049147000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2025-12-31",
              "val": 4049147000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 4049147000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 4149419000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2026-03-31",
              "val": 4149419000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 4232453000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "StockholdersEquityOther": {
        "label": "Stockholders' Equity, Other",
        "description": "This element represents movements included in the statement of changes in stockholders' equity which are not separately disclosed or provided for elsewhere in the taxonomy.",
        "units": {
          "USD": [
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": -385000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": -385000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": -384000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 384000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 384000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            }
          ]
        }
      },
      "StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans": {
        "label": "Stock Issued During Period, Shares, Employee Stock Purchase Plans",
        "description": "Number of shares issued during the period as a result of an employee stock purchase plan.",
        "units": {
          "shares": [
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 230000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 197000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 197000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 202000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 202000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 202000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 164000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 164000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 164000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 130000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 130000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 130000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 116000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 116000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 116000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 131000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 131000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 131000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 86000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 86000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 86000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 114000000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 114000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 114000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 120000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 120000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 147000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            }
          ]
        }
      },
      "StockIssuedDuringPeriodSharesStockOptionsExercised": {
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period",
        "description": "Number of share options (or share units) exercised during the current period.",
        "units": {
          "shares": [
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 586000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 913000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 1354000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 1894000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 696000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 1603000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 2635000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 2844000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 660000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 1181000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 1430000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 1863000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 472000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 514000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 598000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 648000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 28000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 112000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 129000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 172000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 30000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 130000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 224000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 274000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 82000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 101000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 110000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 143000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 15000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 61000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 63000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 67000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 8187,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 0,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2020"
            }
          ]
        }
      },
      "StockIssuedDuringPeriodValueOther": {
        "label": "Stock Issued During Period, Value, Other",
        "description": "Value of shares of stock issued attributable to transactions classified as other.",
        "units": {
          "USD": [
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": -7754000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            }
          ]
        }
      },
      "StockIssuedDuringPeriodValueShareBasedCompensation": {
        "label": "Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture",
        "description": "Value, after forfeiture, of shares issued under share-based payment arrangement. Excludes employee stock ownership plan (ESOP).",
        "units": {
          "USD": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": 10506000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 8097000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 8097000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 11822000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 11822000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 11822000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 25501000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 25501000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 25501000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 42327000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 42327000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 42327000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 34196000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 34196000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 34196000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 18028000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 18028000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 18028000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 11325000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 11325000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 11325000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 13778000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 13778000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 13778000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 14461000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 14461000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 14461000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 8020000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 8585000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": 565000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2018Q2"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 16607000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 8021000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2018Q3"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 16635000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 16635000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 16635000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 9609000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 9609000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 9614000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 9614000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 5000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 5000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2019Q2"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 17907000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 17907000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 8293000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 8293000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2019Q3"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 17907000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 17907000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 17907000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 10662000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 10662000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 10662000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 10662000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": 0,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 20314000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 20314000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 9652000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 9652000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2020Q3"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 20314000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 20314000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 20314000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 13133000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 13133000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 13133000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 13133000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 0,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2021Q2"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 25623000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 25623000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 12490000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 12490000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2021Q3"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 25623000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 25623000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 25623000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 14827000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 14827000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 14827000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 14827000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": 0,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": 0,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2022Q2"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 26149000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 26149000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": 11322000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": 11322000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2022Q3"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 26149000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 26149000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 26149000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 14256000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 14256000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 14256000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 14256000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 26595000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 26595000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 12339000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 12339000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2023Q3"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 26595000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 26595000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 26595000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 14339000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 14339000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 14339000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 14339000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 25281000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 25281000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 10942000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 10942000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2024Q3"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 25281000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 25281000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 13909000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 13909000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 13909000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 13909000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 0,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q2"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 21748000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-07-01",
              "end": "2025-09-30",
              "val": 7839000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 21749000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": 11718000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": 11718000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            }
          ]
        }
      },
      "StockRepurchasedAndRetiredDuringPeriodShares": {
        "label": "Stock Repurchased and Retired During Period, Shares",
        "description": "Number of shares that have been repurchased and retired during the period.",
        "units": {
          "shares": [
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 161000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 1132000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3"
            }
          ]
        }
      },
      "StockRepurchasedAndRetiredDuringPeriodValue": {
        "label": "Stock Repurchased and Retired During Period, Value",
        "description": "Equity impact of the value of stock that has been repurchased and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital).",
        "units": {
          "USD": [
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 7754000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 47203000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 47203000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 47203000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 95107000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 95107000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 95107000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 98233000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 98233000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 98233000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 101791000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 101791000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 101791000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 96218000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 96218000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 96218000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 103793000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 103793000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 103793000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 100000000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 100000000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 250002000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 150002000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2018Q3"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 300002000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 300002000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 300002000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 50000000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 50000000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 99504000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 99504000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 49504000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 49504000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2019Q2"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 299504000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 299504000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 200000000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 200000000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2019Q3"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 399999000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 399999000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 399999000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 160000000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 160000000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 160000000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 160000000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2021Q2"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 275038000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 275038000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 115038000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 115038000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2021Q3"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 375038000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 375038000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 375038000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 75036000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 75036000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 275036000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 275036000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": 200000000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": 200000000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2022Q2"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 275036000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 275036000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 435036000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 435036000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 435036000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 292360000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 292360000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 292360000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 292360000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 292360000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 292360000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 595420000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 595420000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 595420000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 150599000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 150599000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 150599000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 150599000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2024Q2"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 150599000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 150599000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 355535000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 355535000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 202500000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 202500000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 299537000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 299537000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 97037000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 97037000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q2"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 371610000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-07-01",
              "end": "2025-09-30",
              "val": 72073000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 469828000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": 31195000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": 97993000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2026-04-01",
              "end": "2026-06-30",
              "val": 66798000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2"
            }
          ]
        }
      },
      "StockRepurchasedDuringPeriodShares": {
        "label": "Stock Repurchased During Period, Shares",
        "description": "Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.",
        "units": {
          "shares": [
            {
              "start": "2011-10-01",
              "end": "2011-12-31",
              "val": 300000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011Q4"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 100000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 100000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 200000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 1700000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 1700000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 100000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 2700000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 2700000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 2700000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": 100000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 600000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 600000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 600000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 30000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 30000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-04-01",
              "end": "2015-06-30",
              "val": 30000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2"
            },
            {
              "start": "2015-07-01",
              "end": "2015-09-30",
              "val": 300000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3"
            }
          ]
        }
      },
      "StockRepurchasedDuringPeriodValue": {
        "label": "Stock Repurchased During Period, Value",
        "description": "Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.",
        "units": {
          "USD": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": -50138000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 7754000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011"
            },
            {
              "start": "2011-10-01",
              "end": "2011-12-31",
              "val": 7800000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011Q4"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 2500000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 2500000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 7300000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 2400000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 95100000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 95100000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": 7400000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 28200000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 28200000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 28200000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 1800000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 1800000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-04-01",
              "end": "2015-06-30",
              "val": 1800000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2"
            },
            {
              "start": "2015-07-01",
              "end": "2015-09-30",
              "val": 18800000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3"
            }
          ]
        }
      },
      "StockRepurchaseProgramAuthorizedAmount": {
        "label": "Stock Repurchase Program, Authorized Amount (Deprecated 2014-01-31)",
        "description": "Amount of a stock repurchase plan authorized by an entity's Board of Directors.",
        "units": {
          "USD": [
            {
              "start": "2011-10-26",
              "end": "2011-10-27",
              "val": 150000000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2014-04-22",
              "end": "2014-04-23",
              "val": 300000000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-04-22",
              "end": "2014-04-23",
              "val": 300000000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q1I"
            }
          ]
        }
      },
      "StockRepurchaseProgramAuthorizedAmount1": {
        "label": "Stock Repurchase Program, Authorized Amount",
        "description": "Amount of stock repurchase plan authorized.",
        "units": {
          "USD": [
            {
              "end": "2014-04-23",
              "val": 300000000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2014-04-23",
              "val": 300000000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2014-04-23",
              "val": 300000000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2015-01-31",
              "val": 100000000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2015-01-31",
              "val": 100000000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2015-01-31",
              "val": 100000000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2016-04-28",
              "val": 600000000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q1I"
            }
          ]
        }
      },
      "StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount": {
        "label": "Stock Repurchase Program, Remaining Authorized Repurchase Amount (Deprecated 2014-01-31)",
        "description": "Amount remaining of a stock repurchase plan authorized by an entity's Board of Directors.",
        "units": {
          "USD": [
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 21000000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 222600000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            }
          ]
        }
      },
      "StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1": {
        "label": "Stock Repurchase Program, Remaining Authorized Repurchase Amount",
        "description": "Amount remaining of a stock repurchase plan authorized.",
        "units": {
          "USD": [
            {
              "end": "2015-03-31",
              "val": 200000000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 130000000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2021-03-31",
              "val": 100000000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1I"
            }
          ]
        }
      },
      "SubsequentEventAmount": {
        "label": "Subsequent Event, Amount (Deprecated 2013-01-31)",
        "description": "Reflects the known or estimated financial effect of the event, or transaction that occurred between the balance sheet date and the date the financial statements are issued or available to be issued.",
        "units": {
          "USD": [
            {
              "start": "2011-08-01",
              "end": "2011-08-04",
              "val": 3200000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            }
          ]
        }
      },
      "SupplementalUnemploymentBenefitsSeveranceBenefits": {
        "label": "Supplemental Unemployment Benefits, Severance Benefits",
        "description": "Liability for amount due employees, in addition to wages and any other money that employers owe employees, when their employment ends through a layoff or other termination. For example, a company may provide involuntarily terminated employees with a lump sum payment equal to one week's salary for every year of employment.",
        "units": {
          "USD": [
            {
              "end": "2012-12-31",
              "val": 2700000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-12-31",
              "val": 2400000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 2400000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-12-31",
              "val": 2500000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 2500000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 2700000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 2700000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 3100000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 3100000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 3200000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 3200000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 3300000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2018Q4I"
            }
          ]
        }
      },
      "TangibleAssetImpairmentCharges": {
        "label": "Tangible Asset Impairment Charges",
        "description": "The charge against earnings resulting from the aggregate write down of tangible assets from their carrying value to their fair value.",
        "units": {
          "USD": [
            {
              "end": "2019-03-05",
              "val": 14300000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2019-03-05",
              "val": 14300000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q1I"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 14300000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 14300000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 14300000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 14300000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 14300000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 14300000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 14300000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            }
          ]
        }
      },
      "TaxesPayableCurrentAndNoncurrent": {
        "label": "Taxes Payable",
        "description": "Carrying value as of the balance sheet date of obligations incurred and payable for statutory income, sales, use, payroll, excise, real, property and other taxes.",
        "units": {
          "USD": [
            {
              "end": "2013-12-31",
              "val": 18326000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-12-31",
              "val": 30483000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 30483000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "end": "2014-12-31",
              "val": 30483000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2014-12-31",
              "val": 30483000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "end": "2014-12-31",
              "val": 30483000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 31831000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 33726000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 34916000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 37512000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 37512000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2015-12-31",
              "val": 37512000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2015-12-31",
              "val": 37512000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "end": "2015-12-31",
              "val": 37512000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 39269000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 41244000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 42539000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 45133000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 45133000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "end": "2016-12-31",
              "val": 45133000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
              "val": 45133000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "end": "2016-12-31",
              "val": 45133000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 46322000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 44581000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 45375000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 114091000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 114091000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 114091000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 114091000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 114091000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 119349000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 115701000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 95655000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 78008000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 78008000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 78008000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 78008000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 78008000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 93463000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 98182000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 101914000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 102794000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 102794000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 109128000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            }
          ]
        }
      },
      "TreasuryStockSharesAcquired": {
        "label": "Treasury Stock, Shares, Acquired",
        "description": "Number of shares that have been repurchased during the period and are being held in treasury.",
        "units": {
          "shares": [
            {
              "end": "2015-04-28",
              "val": 800000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2015-04-28",
              "val": 800000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q1I"
            }
          ]
        }
      },
      "UndistributedEarningsOfForeignSubsidiaries": {
        "label": "Undistributed Earnings of Foreign Subsidiaries",
        "description": "Amount of undistributed earnings of foreign subsidiaries intended to be permanently reinvested outside the country of domicile.",
        "units": {
          "USD": [
            {
              "end": "2012-12-31",
              "val": 109200000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-12-31",
              "val": 186400000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-12-31",
              "val": 260900000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-12-31",
              "val": 359800000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-12-31",
              "val": 438000000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 606500000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 606500000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 606500000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 606500000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 533500000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 533500000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 533500000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 533500000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-12-31",
              "val": 452600000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 452600000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2019-12-31",
              "val": 452600000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2019-12-31",
              "val": 452600000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-12-31",
              "val": 638800000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-12-31",
              "val": 1257500000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2021Q4I"
            }
          ]
        }
      },
      "UnrealizedGainLossOnDerivatives": {
        "label": "Unrealized Gain (Loss) on Derivatives",
        "description": "The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period.",
        "units": {
          "USD": [
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 9200000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1"
            }
          ]
        }
      },
      "UnrecognizedTaxBenefits": {
        "label": "Unrecognized Tax Benefits",
        "description": "Amount of unrecognized tax benefits.",
        "units": {
          "USD": [
            {
              "end": "2008-12-31",
              "val": 2878000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2008Q4I"
            },
            {
              "end": "2009-12-31",
              "val": 5929000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2009-12-31",
              "val": 5929000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2009Q4I"
            },
            {
              "end": "2010-12-31",
              "val": 10961000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2010-12-31",
              "val": 10961000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010Q4I"
            },
            {
              "end": "2011-06-30",
              "val": 13000000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2I"
            },
            {
              "end": "2011-09-30",
              "val": 14000000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3I"
            },
            {
              "end": "2011-12-31",
              "val": 15472000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "end": "2011-12-31",
              "val": 15472000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2011-12-31",
              "val": 15472000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2011-12-31",
              "val": 15472000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2011-12-31",
              "val": 20639000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2011Q4I"
            },
            {
              "end": "2012-03-31",
              "val": 16700000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1I"
            },
            {
              "end": "2012-06-30",
              "val": 17900000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2I"
            },
            {
              "end": "2012-09-30",
              "val": 19300000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3I"
            },
            {
              "end": "2012-12-31",
              "val": 20639000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "end": "2012-12-31",
              "val": 20639000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2012-12-31",
              "val": 20639000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012Q4I"
            },
            {
              "end": "2013-03-31",
              "val": 22100000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1I"
            },
            {
              "end": "2013-06-30",
              "val": 24000000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2I"
            },
            {
              "end": "2013-09-30",
              "val": 23700000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2013Q3I"
            },
            {
              "end": "2013-12-31",
              "val": 26668000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "end": "2013-12-31",
              "val": 26668000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2013-12-31",
              "val": 26668000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2013-12-31",
              "val": 26668000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2013Q4I"
            },
            {
              "end": "2014-03-31",
              "val": 27900000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2014Q1I"
            },
            {
              "end": "2014-06-30",
              "val": 29500000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2014Q2I"
            },
            {
              "end": "2014-09-30",
              "val": 31100000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q3I"
            },
            {
              "end": "2014-12-31",
              "val": 33067000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "end": "2014-12-31",
              "val": 33100000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "end": "2014-12-31",
              "val": 33100000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "end": "2014-12-31",
              "val": 33067000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2014-12-31",
              "val": 33067000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2014-12-31",
              "val": 33067000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2014Q4I"
            },
            {
              "end": "2015-03-31",
              "val": 34400000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2015Q1I"
            },
            {
              "end": "2015-06-30",
              "val": 36300000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2015Q2I"
            },
            {
              "end": "2015-09-30",
              "val": 37800000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2015Q3I"
            },
            {
              "end": "2015-12-31",
              "val": 39413000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 39400000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "end": "2015-12-31",
              "val": 39400000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "end": "2015-12-31",
              "val": 39400000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "end": "2015-12-31",
              "val": 39413000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2015-12-31",
              "val": 39413000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2015-12-31",
              "val": 39413000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 40900000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-06-30",
              "val": 42600000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2016Q2I"
            },
            {
              "end": "2016-09-30",
              "val": 43900000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2016-12-31",
              "val": 46384000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 46400000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "end": "2016-12-31",
              "val": 46400000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "end": "2016-12-31",
              "val": 46400000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "end": "2016-12-31",
              "val": 46384000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 46384000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 46384000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-03-31",
              "val": 47200000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 45600000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 46100000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2017-12-31",
              "val": 47656000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 47700000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "end": "2017-12-31",
              "val": 47700000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "end": "2017-12-31",
              "val": 47700000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "end": "2017-12-31",
              "val": 47656000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 47656000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 47656000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 50300000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 53200000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 27100000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2018-12-31",
              "val": 33262000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 33300000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "end": "2018-12-31",
              "val": 33300000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "end": "2018-12-31",
              "val": 33300000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "end": "2018-12-31",
              "val": 33262000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2018-12-31",
              "val": 33262000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2018-12-31",
              "val": 33262000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-03-31",
              "val": 38000000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 42700000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 46000000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2019-12-31",
              "val": 46650000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "end": "2019-12-31",
              "val": 46700000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "end": "2019-12-31",
              "val": 46700000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "end": "2019-12-31",
              "val": 46700000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "end": "2019-12-31",
              "val": 46650000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2019-12-31",
              "val": 46650000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2019-12-31",
              "val": 46650000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-03-31",
              "val": 51100000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2020Q1I"
            },
            {
              "end": "2020-06-30",
              "val": 57000000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2020Q2I"
            },
            {
              "end": "2020-09-30",
              "val": 47000000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3I"
            },
            {
              "end": "2020-12-31",
              "val": 46320000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "end": "2020-12-31",
              "val": 46300000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "end": "2020-12-31",
              "val": 46300000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "end": "2020-12-31",
              "val": 46300000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "end": "2020-12-31",
              "val": 46320000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2020-12-31",
              "val": 46320000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2020-12-31",
              "val": 46320000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-03-31",
              "val": 50000000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2021Q1I"
            },
            {
              "end": "2021-06-30",
              "val": 53200000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2021Q2I"
            },
            {
              "end": "2021-09-30",
              "val": 64600000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2021Q3I"
            },
            {
              "end": "2021-12-31",
              "val": 63295000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 63300000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 63300000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 63300000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 63295000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2021-12-31",
              "val": 63295000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2021-12-31",
              "val": 63295000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 68300000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 73200000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 134200000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 141560000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 141600000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 141600000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 141600000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 141560000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2022-12-31",
              "val": 141560000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2022-12-31",
              "val": 141560000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 145300000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 148200000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 150000000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 149172000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 149200000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 149200000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 149200000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 149172000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 149172000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 150800000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 150300000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 156200000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 145534000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 145500000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2024-12-31",
              "val": 145500000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2024-12-31",
              "val": 145500000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2024-12-31",
              "val": 145534000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 147400000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 149600000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 150900000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 117427000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2025-12-31",
              "val": 117400000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 117400000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 119000000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 120900000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions": {
        "label": "Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions",
        "description": "Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.",
        "units": {
          "USD": [
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 378000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 81000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 8400000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 8400000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 260000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 260000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 0,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 826000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 826000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 826000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 3783000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 3783000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 3783000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 29977000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 29977000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 29977000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 5804000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 5804000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 5804000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 2647000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 2647000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 2647000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 533000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 533000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 533000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 3924000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 3924000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 4286000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            }
          ]
        }
      },
      "UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities": {
        "label": "Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities",
        "description": "Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities.",
        "units": {
          "USD": [
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 1527000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 1527000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 1527000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 0,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 0,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 0,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 8700000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2020Q3"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 1146000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 1146000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 1146000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 1416000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 1416000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 1416000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 14166000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 14166000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 14166000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 2464000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 2464000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 2464000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 0,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 0,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 0,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            }
          ]
        }
      },
      "UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued": {
        "label": "Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued",
        "description": "Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.",
        "units": {
          "USD": [
            {
              "end": "2016-09-30",
              "val": 1700000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2016Q3I"
            },
            {
              "end": "2017-03-31",
              "val": 2500000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2017Q1I"
            },
            {
              "end": "2017-06-30",
              "val": 2300000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2I"
            },
            {
              "end": "2017-09-30",
              "val": 2600000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2017Q3I"
            },
            {
              "end": "2018-03-31",
              "val": 3300000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 3600000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-09-30",
              "val": 800000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3I"
            },
            {
              "end": "2019-03-31",
              "val": 0,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2019Q1I"
            },
            {
              "end": "2019-06-30",
              "val": 0,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2I"
            },
            {
              "end": "2019-09-30",
              "val": 1600000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3I"
            },
            {
              "end": "2022-09-30",
              "val": 5500000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            }
          ]
        }
      },
      "UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions": {
        "label": "Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions",
        "description": "Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.",
        "units": {
          "USD": [
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 1691000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 2742000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 2742000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 4133000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 4133000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 5087000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 5087000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 5087000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 6110000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 6110000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 6110000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 6659000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 6659000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 6659000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 6346000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 6346000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 6346000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 6971000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 6971000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 6971000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-04-01",
              "end": "2017-06-30",
              "val": 2500000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2017Q2"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 1819000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 1819000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 1819000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 14519000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 14519000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 14519000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 19012000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 19012000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 19012000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 20592000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 20592000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 20592000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 27710000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 27710000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 27710000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 84249000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 84249000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 84249000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 8616000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 8616000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 8616000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 12264000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 12264000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 8879000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            }
          ]
        }
      },
      "UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions": {
        "label": "Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions",
        "description": "Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.",
        "units": {
          "USD": [
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 1738000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 2290000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 2290000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 378000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 378000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 80000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 80000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 80000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": -81000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": -81000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": -260000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2014"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 1809000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 1809000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 1809000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 80000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 80000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 80000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 143000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 143000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 143000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 10201000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 10201000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 10201000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 5471000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 5471000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 5471000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 15411000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 15411000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 15411000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 5647000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 5647000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 5647000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 2031000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 2031000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 1288000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            }
          ]
        }
      },
      "UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued": {
        "label": "Unrecognized Tax Benefits, Interest on Income Taxes Accrued",
        "description": "Amount of interest expense accrued for an underpayment of income taxes.",
        "units": {
          "USD": [
            {
              "end": "2015-12-31",
              "val": 700000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "end": "2015-12-31",
              "val": 700000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2015Q4I"
            },
            {
              "end": "2016-03-31",
              "val": 900000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2016Q1I"
            },
            {
              "end": "2016-12-31",
              "val": 2100000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "end": "2016-12-31",
              "val": 2100000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016Q4I"
            },
            {
              "end": "2017-12-31",
              "val": 2900000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "end": "2017-12-31",
              "val": 2900000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-12-31",
              "val": 900000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2018Q4I"
            }
          ]
        }
      },
      "UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense": {
        "label": "Unrecognized Tax Benefits, Interest on Income Taxes Expense",
        "description": "Amount of interest expense for an underpayment of income taxes.",
        "units": {
          "USD": [
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": -2900000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": -2900000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2018Q3"
            }
          ]
        }
      },
      "UnrecognizedTaxBenefitsPeriodIncreaseDecrease": {
        "label": "Unrecognized Tax Benefits, Period Increase (Decrease)",
        "description": "Amount of increase (decrease) in unrecognized tax benefits attributable to uncertain tax positions taken in tax returns.",
        "units": {
          "USD": [
            {
              "start": "2011-04-01",
              "end": "2011-06-30",
              "val": 900000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2011Q2"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": 1000000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2011Q3"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 4500000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 1200000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": 1200000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2012Q2"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 200000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2012Q3"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 5200000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 1400000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-04-01",
              "end": "2013-06-30",
              "val": 1900000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2013Q2"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 6000000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 6400000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 6300000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 7000000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2016"
            }
          ]
        }
      },
      "UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations": {
        "label": "Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations",
        "description": "Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.",
        "units": {
          "USD": [
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 3000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 3000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 3000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 28993000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 28993000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 28993000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 1984000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 1984000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 1984000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 0,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 0,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 0,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 8986000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 8986000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 8986000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 4582000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 4582000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 4582000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 3654000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 3654000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 3654000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 14009000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 14009000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 33988000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            }
          ]
        }
      },
      "UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate": {
        "label": "Unrecognized Tax Benefits that Would Impact Effective Tax Rate",
        "description": "The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.",
        "units": {
          "USD": [
            {
              "end": "2017-12-31",
              "val": 39800000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2017Q4I"
            },
            {
              "end": "2018-03-31",
              "val": 28000000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2018Q1I"
            },
            {
              "end": "2018-06-30",
              "val": 28000000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2018Q2I"
            },
            {
              "end": "2018-12-31",
              "val": 29900000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2018Q4I"
            },
            {
              "end": "2019-12-31",
              "val": 43900000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2019Q4I"
            },
            {
              "end": "2020-12-31",
              "val": 43800000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-12-31",
              "val": 61900000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-12-31",
              "val": 134300000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-12-31",
              "val": 140000000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-12-31",
              "val": 139000000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 111900000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025Q4I"
            }
          ]
        }
      },
      "ValuationAllowanceDeferredTaxAssetChangeInAmount": {
        "label": "Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount",
        "description": "Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset.",
        "units": {
          "USD": [
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 6800000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 8000000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 2600000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": -800000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": -31400000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": -31400000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": -31400000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 11600000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 10300000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": -8300000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": -4400000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 7900000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            }
          ]
        }
      },
      "VariableLeaseCost": {
        "label": "Variable Lease, Cost",
        "description": "Amount of variable lease cost, excluded from lease liability, recognized when obligation for payment is incurred for finance and operating leases.",
        "units": {
          "USD": [
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 1107000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 690000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2019Q2"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 1543000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 436000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2019Q3"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 1899000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 1899000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 1899000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 1429000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 1429000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 1429000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 11134000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 11134000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 11134000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 22084000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 22084000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 22084000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 16013000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 16013000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 16013000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 3630000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 3630000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 4054000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            }
          ]
        }
      },
      "WeightedAverageNumberDilutedSharesOutstandingAdjustment": {
        "label": "Weighted Average Number Diluted Shares Outstanding Adjustment",
        "description": "The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation.",
        "units": {
          "shares": [
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 2208000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2010-04-01",
              "end": "2010-06-30",
              "val": 1904000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2010Q2"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 2199000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2010-07-01",
              "end": "2010-09-30",
              "val": 2028000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2010Q3"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 2255000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 2255000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 2517000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2011Q1"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 2534000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 2534000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2011-04-01",
              "end": "2011-06-30",
              "val": 2433000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-04-01",
              "end": "2011-06-30",
              "val": 2433000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2011Q2"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 2305000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 2305000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": 1811000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": 1811000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2011Q3"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 2306000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 2306000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 2306000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 2621000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 2621000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 2636000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 2636000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": 2570000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": 2570000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2012Q2"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 2660000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 2660000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 0,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 0,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2012Q3"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 2511000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 2511000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 2511000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 0,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 0,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 0,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 0,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-04-01",
              "end": "2013-06-30",
              "val": 1573000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-04-01",
              "end": "2013-06-30",
              "val": 1573000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2013Q2"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 1957000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 1957000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 1881000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 1881000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2013Q3"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 2038000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 2038000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 2038000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 1697000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 1697000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 1578000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 1578000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2014-04-01",
              "end": "2014-06-30",
              "val": 1314000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-04-01",
              "end": "2014-06-30",
              "val": 1314000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2014Q2"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 1519000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 1519000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": 1385000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": 1385000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2014Q3"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 1529000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 1529000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 1529000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 1365000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 1365000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 1371000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 1371000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2015-04-01",
              "end": "2015-06-30",
              "val": 1137000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-04-01",
              "end": "2015-06-30",
              "val": 1137000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2015Q2"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 1403000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 1403000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2015-07-01",
              "end": "2015-09-30",
              "val": 1284000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-07-01",
              "end": "2015-09-30",
              "val": 1284000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2015Q3"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 1523000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 1523000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 1523000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 1489000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 1489000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 1549000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 1549000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-04-01",
              "end": "2016-06-30",
              "val": 1330000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-04-01",
              "end": "2016-06-30",
              "val": 1330000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2016Q2"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 1603000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 1603000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": 1489000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": 1489000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2016Q3"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 1628000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 1628000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 1628000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 1630000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 1630000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 1621000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 1621000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-04-01",
              "end": "2017-06-30",
              "val": 1443000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-04-01",
              "end": "2017-06-30",
              "val": 1443000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2017Q2"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 1671000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 1671000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": 1626000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": 1626000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2017Q3"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 1747000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 1747000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 1747000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 1592000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 1592000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 1448000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 1448000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": 1255000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": 1255000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2018Q2"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 1416000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 1416000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 1248000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 1248000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2018Q3"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 1293000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 1293000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 1293000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 827000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 827000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 764000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 764000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 647000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 647000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2019Q2"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 688000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 688000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 493000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 493000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2019Q3"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 676000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 676000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 676000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 436000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 436000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 335000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 335000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": 0,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": 0,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2020Q2"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 349000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 349000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 339000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 339000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2020Q3"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 470000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 470000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 470000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 798000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 798000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 733000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 733000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 630000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 630000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2021Q2"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 706000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 706000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 612000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 612000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2021Q3"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 753000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 753000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 753000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 451000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 451000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 272000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 272000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": 150000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": 150000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2022Q2"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 244000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 244000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": 144000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": 144000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2022Q3"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 230000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 230000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 230000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 190000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 190000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 175000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 175000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 165000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 165000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2023Q2"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 179000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 179000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 257000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 257000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2023Q3"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 142000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 142000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 142000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 147000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 147000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 135000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 135000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 39000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 39000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2024Q2"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 118000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 118000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 21000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 21000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2024Q3"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 116000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 116000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 53000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 53000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 37000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 37000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 28000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 28000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q2"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 49000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-07-01",
              "end": "2025-09-30",
              "val": 42000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 46000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": 189000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": 169000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2026-04-01",
              "end": "2026-06-30",
              "val": 25000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2"
            }
          ]
        }
      },
      "WeightedAverageNumberOfDilutedSharesOutstanding": {
        "label": "Weighted Average Number of Shares Outstanding, Diluted",
        "description": "The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.",
        "units": {
          "shares": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": 68064000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2009-01-01",
              "end": "2009-06-30",
              "val": 66941000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2009-04-01",
              "end": "2009-06-30",
              "val": 67373000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2009Q2"
            },
            {
              "start": "2009-01-01",
              "end": "2009-09-30",
              "val": 67278000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2009-07-01",
              "end": "2009-09-30",
              "val": 69528000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2009Q3"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 69094000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 69094000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-03-31",
              "val": 77597000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2010Q1"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 77644000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 77644000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2010-04-01",
              "end": "2010-06-30",
              "val": 77607000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-04-01",
              "end": "2010-06-30",
              "val": 77607000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2010Q2"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 77852000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 77852000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2010-07-01",
              "end": "2010-09-30",
              "val": 78109000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-07-01",
              "end": "2010-09-30",
              "val": 78109000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2010Q3"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 78080000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 78080000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 78080000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 79361000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 79361000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2011Q1"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 79903000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 79903000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2011-04-01",
              "end": "2011-06-30",
              "val": 80321000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-04-01",
              "end": "2011-06-30",
              "val": 80321000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2011Q2"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 80040000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 80040000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": 80266000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": 80266000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2011Q3"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 80294000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 80294000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 80294000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 81856000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 81856000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 82446000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 82446000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": 82954000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": 82954000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2012Q2"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 83016000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 83016000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 81437000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 81437000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2012Q3"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 83040000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 83040000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 83040000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 81248000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 81248000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 80909000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 80909000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-04-01",
              "end": "2013-06-30",
              "val": 82149000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-04-01",
              "end": "2013-06-30",
              "val": 82149000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2013Q2"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 82549000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 82549000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 81848000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 81848000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2013Q3"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 82589000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 82589000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 82589000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 82817000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 82817000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 82651000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 82651000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2014-04-01",
              "end": "2014-06-30",
              "val": 82341000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-04-01",
              "end": "2014-06-30",
              "val": 82341000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2014Q2"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 82443000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 82443000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": 82014000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": 82014000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2014Q3"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 82283000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 82283000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 82283000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 81824000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 81824000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 81729000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 81729000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2015-04-01",
              "end": "2015-06-30",
              "val": 81394000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-04-01",
              "end": "2015-06-30",
              "val": 81394000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2015Q2"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 81576000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 81576000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2015-07-01",
              "end": "2015-09-30",
              "val": 81092000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-07-01",
              "end": "2015-09-30",
              "val": 81092000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2015Q3"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 81521000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 81521000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 81521000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 81320000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 81320000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 81440000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 81440000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-04-01",
              "end": "2016-06-30",
              "val": 81281000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-04-01",
              "end": "2016-06-30",
              "val": 81281000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2016Q2"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 81523000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 81523000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": 81466000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": 81466000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2016Q3"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 81484000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 81484000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 81484000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 81534000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 81534000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 81668000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 81668000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-04-01",
              "end": "2017-06-30",
              "val": 81631000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-04-01",
              "end": "2017-06-30",
              "val": 81631000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2017Q2"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 81757000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 81757000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": 81789000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": 81789000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2017Q3"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 81832000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 81832000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 81832000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 81628000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 81628000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 81575000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 81575000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": 81471000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": 81471000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2018Q2"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 81538000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 81538000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 81359000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 81359000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2018Q3"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 81357000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 81357000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 81357000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 80687000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 80687000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 80665000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 80665000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 80590000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 80590000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2019Q2"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 80397000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 80397000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 79825000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 79825000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2019Q3"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 80100000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 80100000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 80100000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 79028000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 79028000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 79016000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 79016000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": 78769000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": 78769000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2020Q2"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 79078000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 79078000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 79163000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 79163000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2020Q3"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 79230000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 79230000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 79230000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 79798000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 79798000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 79737000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 79737000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 79638000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 79638000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2021Q2"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 79677000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 79677000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 79516000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 79516000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2021Q3"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 79670000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 79670000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 79670000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 79193000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 79193000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 78840000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 78840000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": 78545000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": 78545000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2022Q2"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 78652000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 78652000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": 78237000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": 78237000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2022Q3"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 78420000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 78420000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 78420000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 77111000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 77111000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 76897000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 76897000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 76689000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 76689000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2023Q2"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 76849000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 76849000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 76826000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 76826000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2023Q3"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 76568000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 76568000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 76568000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 75322000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 75322000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 75315000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 75315000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 75223000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 75223000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2024Q2"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 75149000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 75149000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 74757000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 74757000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2024Q3"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 74993000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 74993000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 73615000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 73615000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 73098000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 73098000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 72593000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 72593000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q2"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 72880000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-07-01",
              "end": "2025-09-30",
              "val": 72419000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 72588000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": 71614000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": 71629000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2026-04-01",
              "end": "2026-06-30",
              "val": 71520000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2"
            }
          ]
        }
      },
      "WeightedAverageNumberOfSharesOutstandingBasic": {
        "label": "Weighted Average Number of Shares Outstanding, Basic",
        "description": "Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.",
        "units": {
          "shares": [
            {
              "start": "2008-01-01",
              "end": "2008-12-31",
              "val": 66812000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24",
              "frame": "CY2008"
            },
            {
              "start": "2009-01-01",
              "end": "2009-06-30",
              "val": 66135000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2009-04-01",
              "end": "2009-06-30",
              "val": 66285000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05",
              "frame": "CY2009Q2"
            },
            {
              "start": "2009-01-01",
              "end": "2009-09-30",
              "val": 67278000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2009-07-01",
              "end": "2009-09-30",
              "val": 69528000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04",
              "frame": "CY2009Q3"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 69094000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2009-01-01",
              "end": "2009-12-31",
              "val": 69094000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29",
              "frame": "CY2009"
            },
            {
              "start": "2010-01-01",
              "end": "2010-03-31",
              "val": 75166000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05",
              "frame": "CY2010Q1"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 75436000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-01-01",
              "end": "2010-06-30",
              "val": 75436000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2010-04-01",
              "end": "2010-06-30",
              "val": 75703000,
              "accn": "0001193125-10-179014",
              "fy": 2010,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2010-08-05"
            },
            {
              "start": "2010-04-01",
              "end": "2010-06-30",
              "val": 75703000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08",
              "frame": "CY2010Q2"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 75653000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-01-01",
              "end": "2010-09-30",
              "val": 75653000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2010-07-01",
              "end": "2010-09-30",
              "val": 76081000,
              "accn": "0001193125-10-247648",
              "fy": 2010,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2010-11-04"
            },
            {
              "start": "2010-07-01",
              "end": "2010-09-30",
              "val": 76081000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04",
              "frame": "CY2010Q3"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 75825000,
              "accn": "0001193125-11-044951",
              "fy": 2010,
              "fp": "FY",
              "form": "10-K",
              "filed": "2011-02-24"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 75825000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2010-01-01",
              "end": "2010-12-31",
              "val": 75825000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01",
              "frame": "CY2010"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 76844000,
              "accn": "0001193125-11-128271",
              "fy": 2011,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2011-05-05"
            },
            {
              "start": "2011-01-01",
              "end": "2011-03-31",
              "val": 76844000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08",
              "frame": "CY2011Q1"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 77369000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-01-01",
              "end": "2011-06-30",
              "val": 77369000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2011-04-01",
              "end": "2011-06-30",
              "val": 77888000,
              "accn": "0001193125-11-213996",
              "fy": 2011,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2011-08-08"
            },
            {
              "start": "2011-04-01",
              "end": "2011-06-30",
              "val": 77888000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02",
              "frame": "CY2011Q2"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 77735000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-01-01",
              "end": "2011-09-30",
              "val": 77735000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": 78455000,
              "accn": "0001193125-11-296816",
              "fy": 2011,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2011-11-04"
            },
            {
              "start": "2011-07-01",
              "end": "2011-09-30",
              "val": 78455000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09",
              "frame": "CY2011Q3"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 77988000,
              "accn": "0001193125-12-089395",
              "fy": 2011,
              "fp": "FY",
              "form": "10-K",
              "filed": "2012-02-29"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 77988000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2011-01-01",
              "end": "2011-12-31",
              "val": 77988000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28",
              "frame": "CY2011"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 79235000,
              "accn": "0001193125-12-218771",
              "fy": 2012,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2012-05-08"
            },
            {
              "start": "2012-01-01",
              "end": "2012-03-31",
              "val": 79235000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03",
              "frame": "CY2012Q1"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 79810000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-01-01",
              "end": "2012-06-30",
              "val": 79810000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": 80384000,
              "accn": "0001097149-12-000015",
              "fy": 2012,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2012-08-02"
            },
            {
              "start": "2012-04-01",
              "end": "2012-06-30",
              "val": 80384000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02",
              "frame": "CY2012Q2"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 80356000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-01-01",
              "end": "2012-09-30",
              "val": 80356000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 81437000,
              "accn": "0001097149-12-000020",
              "fy": 2012,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2012-11-09"
            },
            {
              "start": "2012-07-01",
              "end": "2012-09-30",
              "val": 81437000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01",
              "frame": "CY2012Q3"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 80529000,
              "accn": "0001097149-13-000007",
              "fy": 2012,
              "fp": "FY",
              "form": "10-K",
              "filed": "2013-03-01"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 80529000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2012-01-01",
              "end": "2012-12-31",
              "val": 80529000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26",
              "frame": "CY2012"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 81248000,
              "accn": "0001097149-13-000016",
              "fy": 2013,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2013-05-03"
            },
            {
              "start": "2013-01-01",
              "end": "2013-03-31",
              "val": 81248000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01",
              "frame": "CY2013Q1"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 80909000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-01-01",
              "end": "2013-06-30",
              "val": 80909000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2013-04-01",
              "end": "2013-06-30",
              "val": 80576000,
              "accn": "0001097149-13-000033",
              "fy": 2013,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2013-08-02"
            },
            {
              "start": "2013-04-01",
              "end": "2013-06-30",
              "val": 80576000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31",
              "frame": "CY2013Q2"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 80592000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-01-01",
              "end": "2013-09-30",
              "val": 80592000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 79967000,
              "accn": "0001097149-13-000045",
              "fy": 2013,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2013-11-01"
            },
            {
              "start": "2013-07-01",
              "end": "2013-09-30",
              "val": 79967000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30",
              "frame": "CY2013Q3"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 80551000,
              "accn": "0001445305-14-000789",
              "fy": 2013,
              "fp": "FY",
              "form": "10-K",
              "filed": "2014-02-28"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 80551000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2013-01-01",
              "end": "2013-12-31",
              "val": 80551000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25",
              "frame": "CY2013"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 81120000,
              "accn": "0001445305-14-001766",
              "fy": 2014,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2014-05-01"
            },
            {
              "start": "2014-01-01",
              "end": "2014-03-31",
              "val": 81120000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01",
              "frame": "CY2014Q1"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 81073000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-01-01",
              "end": "2014-06-30",
              "val": 81073000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2014-04-01",
              "end": "2014-06-30",
              "val": 81027000,
              "accn": "0001097149-14-000010",
              "fy": 2014,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2014-07-31"
            },
            {
              "start": "2014-04-01",
              "end": "2014-06-30",
              "val": 81027000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30",
              "frame": "CY2014Q2"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 80924000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-01-01",
              "end": "2014-09-30",
              "val": 80924000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": 80629000,
              "accn": "0001097149-14-000013",
              "fy": 2014,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2014-10-30"
            },
            {
              "start": "2014-07-01",
              "end": "2014-09-30",
              "val": 80629000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29",
              "frame": "CY2014Q3"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 80754000,
              "accn": "0001097149-15-000005",
              "fy": 2014,
              "fp": "FY",
              "form": "10-K",
              "filed": "2015-02-26"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 80754000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2014-01-01",
              "end": "2014-12-31",
              "val": 80754000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28",
              "frame": "CY2014"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 80459000,
              "accn": "0001097149-15-000012",
              "fy": 2015,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2015-05-01"
            },
            {
              "start": "2015-01-01",
              "end": "2015-03-31",
              "val": 80459000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05",
              "frame": "CY2015Q1"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 80358000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-01-01",
              "end": "2015-06-30",
              "val": 80358000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2015-04-01",
              "end": "2015-06-30",
              "val": 80257000,
              "accn": "0001097149-15-000024",
              "fy": 2015,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2015-07-30"
            },
            {
              "start": "2015-04-01",
              "end": "2015-06-30",
              "val": 80257000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04",
              "frame": "CY2015Q2"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 80173000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-01-01",
              "end": "2015-09-30",
              "val": 80173000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2015-07-01",
              "end": "2015-09-30",
              "val": 79808000,
              "accn": "0001097149-15-000026",
              "fy": 2015,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2015-10-29"
            },
            {
              "start": "2015-07-01",
              "end": "2015-09-30",
              "val": 79808000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08",
              "frame": "CY2015Q3"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 79998000,
              "accn": "0001097149-16-000031",
              "fy": 2015,
              "fp": "FY",
              "form": "10-K",
              "filed": "2016-02-25"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 79998000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2015-01-01",
              "end": "2015-12-31",
              "val": 79998000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28",
              "frame": "CY2015"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 79831000,
              "accn": "0001097149-16-000051",
              "fy": 2016,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2016-05-05"
            },
            {
              "start": "2016-01-01",
              "end": "2016-03-31",
              "val": 79831000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04",
              "frame": "CY2016Q1"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 79891000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-01-01",
              "end": "2016-06-30",
              "val": 79891000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2016-04-01",
              "end": "2016-06-30",
              "val": 79951000,
              "accn": "0001097149-16-000060",
              "fy": 2016,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2016-08-04"
            },
            {
              "start": "2016-04-01",
              "end": "2016-06-30",
              "val": 79951000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03",
              "frame": "CY2016Q2"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 79920000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-01-01",
              "end": "2016-09-30",
              "val": 79920000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": 79977000,
              "accn": "0001097149-16-000065",
              "fy": 2016,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2016-11-08"
            },
            {
              "start": "2016-07-01",
              "end": "2016-09-30",
              "val": 79977000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02",
              "frame": "CY2016Q3"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 79856000,
              "accn": "0001097149-17-000009",
              "fy": 2016,
              "fp": "FY",
              "form": "10-K",
              "filed": "2017-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 79856000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2016-01-01",
              "end": "2016-12-31",
              "val": 79856000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28",
              "frame": "CY2016"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 79904000,
              "accn": "0001097149-17-000018",
              "fy": 2017,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2017-05-04"
            },
            {
              "start": "2017-01-01",
              "end": "2017-03-31",
              "val": 79904000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03",
              "frame": "CY2017Q1"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 80047000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-01-01",
              "end": "2017-06-30",
              "val": 80047000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2017-04-01",
              "end": "2017-06-30",
              "val": 80188000,
              "accn": "0001097149-17-000030",
              "fy": 2017,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2017-08-03"
            },
            {
              "start": "2017-04-01",
              "end": "2017-06-30",
              "val": 80188000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02",
              "frame": "CY2017Q2"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 80086000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-01-01",
              "end": "2017-09-30",
              "val": 80086000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": 80163000,
              "accn": "0001097149-17-000035",
              "fy": 2017,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2017-11-02"
            },
            {
              "start": "2017-07-01",
              "end": "2017-09-30",
              "val": 80163000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01",
              "frame": "CY2017Q3"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 80085000,
              "accn": "0001097149-18-000010",
              "fy": 2017,
              "fp": "FY",
              "form": "10-K",
              "filed": "2018-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 80085000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2017-01-01",
              "end": "2017-12-31",
              "val": 80085000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28",
              "frame": "CY2017"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 80036000,
              "accn": "0001097149-18-000019",
              "fy": 2018,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2018-05-03"
            },
            {
              "start": "2018-01-01",
              "end": "2018-03-31",
              "val": 80036000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02",
              "frame": "CY2018Q1"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 80127000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-01-01",
              "end": "2018-06-30",
              "val": 80127000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": 80216000,
              "accn": "0001097149-18-000029",
              "fy": 2018,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2018-08-02"
            },
            {
              "start": "2018-04-01",
              "end": "2018-06-30",
              "val": 80216000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01",
              "frame": "CY2018Q2"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 80122000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-01-01",
              "end": "2018-09-30",
              "val": 80122000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 80111000,
              "accn": "0001097149-18-000032",
              "fy": 2018,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2018-11-01"
            },
            {
              "start": "2018-07-01",
              "end": "2018-09-30",
              "val": 80111000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31",
              "frame": "CY2018Q3"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 80064000,
              "accn": "0001097149-19-000009",
              "fy": 2018,
              "fp": "FY",
              "form": "10-K",
              "filed": "2019-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 80064000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2018-01-01",
              "end": "2018-12-31",
              "val": 80064000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26",
              "frame": "CY2018"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 79860000,
              "accn": "0001097149-19-000022",
              "fy": 2019,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2019-05-02"
            },
            {
              "start": "2019-01-01",
              "end": "2019-03-31",
              "val": 79860000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05",
              "frame": "CY2019Q1"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 79901000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-01-01",
              "end": "2019-06-30",
              "val": 79901000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 79943000,
              "accn": "0001097149-19-000032",
              "fy": 2019,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2019-08-01"
            },
            {
              "start": "2019-04-01",
              "end": "2019-06-30",
              "val": 79943000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31",
              "frame": "CY2019Q2"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 79709000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-01-01",
              "end": "2019-09-30",
              "val": 79709000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 79332000,
              "accn": "0001097149-19-000036",
              "fy": 2019,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2019-10-31"
            },
            {
              "start": "2019-07-01",
              "end": "2019-09-30",
              "val": 79332000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30",
              "frame": "CY2019Q3"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 79424000,
              "accn": "0001097149-20-000008",
              "fy": 2019,
              "fp": "FY",
              "form": "10-K",
              "filed": "2020-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 79424000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 79424000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 78592000,
              "accn": "0001097149-20-000025",
              "fy": 2020,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2020-05-05"
            },
            {
              "start": "2020-01-01",
              "end": "2020-03-31",
              "val": 78592000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05",
              "frame": "CY2020Q1"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 78681000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-01-01",
              "end": "2020-06-30",
              "val": 78681000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": 78769000,
              "accn": "0001097149-20-000049",
              "fy": 2020,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2020-07-31"
            },
            {
              "start": "2020-04-01",
              "end": "2020-06-30",
              "val": 78769000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04",
              "frame": "CY2020Q2"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 78729000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-01-01",
              "end": "2020-09-30",
              "val": 78729000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 78824000,
              "accn": "0001097149-20-000052",
              "fy": 2020,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2020-10-30"
            },
            {
              "start": "2020-07-01",
              "end": "2020-09-30",
              "val": 78824000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02",
              "frame": "CY2020Q3"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 78760000,
              "accn": "0001097149-21-000007",
              "fy": 2020,
              "fp": "FY",
              "form": "10-K",
              "filed": "2021-02-26"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 78760000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 78760000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 79000000,
              "accn": "0001097149-21-000027",
              "fy": 2021,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2021-05-05"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 79000000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 79004000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 79004000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 79008000,
              "accn": "0001097149-21-000054",
              "fy": 2021,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2021-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 79008000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2021Q2"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 78971000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 78971000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 78904000,
              "accn": "0001097149-21-000073",
              "fy": 2021,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2021-11-02"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 78904000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2021Q3"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 78917000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 78917000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 78917000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 78742000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 78742000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 78568000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 78568000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": 78395000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": 78395000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2022Q2"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 78408000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 78408000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": 78093000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": 78093000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2022Q3"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 78190000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 78190000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 78190000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 76921000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 76921000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 76722000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 76722000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 76524000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 76524000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2023Q2"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 76670000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 76670000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 76569000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 76569000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2023Q3"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 76426000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 76426000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 76426000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 75175000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 75175000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 75180000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 75180000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 75184000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 75184000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2024Q2"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 75031000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 75031000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 74736000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 74736000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2024Q3"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 74877000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 74877000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 73562000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 73562000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 73061000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 73061000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 72565000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 72565000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q2"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 72831000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-07-01",
              "end": "2025-09-30",
              "val": 72377000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 72542000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": 71425000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": 71460000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2026-04-01",
              "end": "2026-06-30",
              "val": 71495000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2"
            }
          ]
        }
      },
      "AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation": {
        "label": "Share-based Payment Arrangement, Decrease for Tax Withholding Obligation",
        "description": "Amount of decrease to equity for grantee's tax withholding obligation for award under share-based payment arrangement.",
        "units": {
          "USD": [
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 57676000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 51122000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 51122000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-03-31",
              "val": 66568000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2021Q1"
            },
            {
              "start": "2021-01-01",
              "end": "2021-06-30",
              "val": 104889000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2021-04-01",
              "end": "2021-06-30",
              "val": 38321000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2021Q2"
            },
            {
              "start": "2021-01-01",
              "end": "2021-09-30",
              "val": 107343000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2021-07-01",
              "end": "2021-09-30",
              "val": 2454000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2021Q3"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 108917000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 108917000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 108917000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 51533000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "start": "2022-01-01",
              "end": "2022-03-31",
              "val": 51533000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2022Q1"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 52187000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-06-30",
              "val": 52187000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": 654000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "start": "2022-04-01",
              "end": "2022-06-30",
              "val": 654000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2022Q2"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 52611000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 52611000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": 424000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": 424000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2022Q3"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 52799000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 52799000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 52799000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 20857000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 20857000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 21787000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 21787000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 930000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 930000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2023Q2"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 22294000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 22294000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 507000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 507000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2023Q3"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 22575000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 22575000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 22575000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 26055000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 26055000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 27602000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 27602000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 1547000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 1547000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2024Q2"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 27972000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 27972000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 370000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 370000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2024Q3"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 28125000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 28125000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 19577000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 19577000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 19830000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 19830000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 253000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 253000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q2"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 20232000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-07-01",
              "end": "2025-09-30",
              "val": 402000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 20390000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": 28651000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": 29166000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2026-04-01",
              "end": "2026-06-30",
              "val": 515000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2"
            }
          ]
        }
      },
      "AssetsFairValueDisclosure": {
        "label": "Assets, Fair Value Disclosure",
        "description": "Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.",
        "units": {
          "USD": [
            {
              "end": "2020-12-31",
              "val": 528136000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-12-31",
              "val": 554322000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 554322000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 554322000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 554322000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 545701000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 442613000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 230618000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 443704000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 328641000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 328641000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 328641000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 328641000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 328641000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 270460000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 274377000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 313913000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 93082000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 93082000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 93082000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 93082000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 93082000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 86301000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 22308000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 181474000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 291464000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 291464000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2024-12-31",
              "val": 291464000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2024-12-31",
              "val": 291464000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2024-12-31",
              "val": 291464000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 115685000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 77372000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 207177000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 324857000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2025-12-31",
              "val": 324857000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 324857000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 198951000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 218985000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue": {
        "label": "Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five",
        "description": "Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in second through fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "units": {
          "USD": [
            {
              "end": "2021-12-31",
              "val": 139113000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 139113000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 139113000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 139113000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 139113000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 127219000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 82504000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 61341000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 48475000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 48475000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 48475000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 48475000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 48475000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 43511000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 31184000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 20082000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 8709000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 8709000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 8709000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 8709000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 8709000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 4205000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 324000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            }
          ]
        }
      },
      "AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue": {
        "label": "Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Year One",
        "description": "Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).",
        "units": {
          "USD": [
            {
              "end": "2021-12-31",
              "val": 59737000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 59737000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 59737000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 59737000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 59737000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 67225000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 17185000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 35157000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 51037000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 51037000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 51037000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 51037000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 51037000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 45512000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 50644000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 42847000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 34617000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 34617000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 34617000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 34617000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 34617000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 32515000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 20358000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            }
          ]
        }
      },
      "AvailableForSaleSecuritiesDebtSecurities": {
        "label": "Debt Securities, Available-for-sale",
        "description": "Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).",
        "units": {
          "USD": [
            {
              "end": "2021-12-31",
              "val": 198850000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 198850000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 198850000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 198850000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 198850000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 194444000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 99689000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 96498000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 99512000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 99512000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 99512000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 99512000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 99512000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 89023000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 81828000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 62929000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 43326000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 43326000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 43326000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 43326000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 43326000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 36720000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 20682000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            }
          ]
        }
      },
      "Depreciation": {
        "label": "Depreciation",
        "description": "The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.",
        "units": {
          "USD": [
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 73100000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 80100000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 80100000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 92100000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 92100000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 92100000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 109800000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 109800000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 109800000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 126000000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 126000000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 126000000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 126200000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 126200000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 218600000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            }
          ]
        }
      },
      "EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense": {
        "label": "Share-based Payment Arrangement, Expense, Tax Benefit",
        "description": "Amount of tax benefit for recognition of expense of award under share-based payment arrangement.",
        "units": {
          "USD": [
            {
              "start": "2019-01-01",
              "end": "2019-12-31",
              "val": 10300000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2019"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 11900000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 11900000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 13800000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 13800000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 13800000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 14900000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 14900000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 14900000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 17100000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 17100000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 17100000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 19000000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 19000000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 20000000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            }
          ]
        }
      },
      "PrepaidExpenseCurrent": {
        "label": "Prepaid Expense, Current",
        "description": "Amount of asset related to consideration paid in advance for costs that provide economic benefits within a future period of one year or the normal operating cycle, if longer.",
        "units": {
          "USD": [
            {
              "end": "2020-12-31",
              "val": 30069000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25",
              "frame": "CY2020Q4I"
            },
            {
              "end": "2021-12-31",
              "val": 70218000,
              "accn": "0001097149-22-000011",
              "fy": 2021,
              "fp": "FY",
              "form": "10-K",
              "filed": "2022-02-25"
            },
            {
              "end": "2021-12-31",
              "val": 70218000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05"
            },
            {
              "end": "2021-12-31",
              "val": 70218000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04"
            },
            {
              "end": "2021-12-31",
              "val": 70218000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04"
            },
            {
              "end": "2021-12-31",
              "val": 70218000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-03-31",
              "val": 74069000,
              "accn": "0001097149-22-000036",
              "fy": 2022,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2022-05-05",
              "frame": "CY2022Q1I"
            },
            {
              "end": "2022-06-30",
              "val": 61628000,
              "accn": "0001097149-22-000054",
              "fy": 2022,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2022-08-04",
              "frame": "CY2022Q2I"
            },
            {
              "end": "2022-09-30",
              "val": 50567000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3I"
            },
            {
              "end": "2022-12-31",
              "val": 69124000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 69124000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 69124000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 69124000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 69124000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 84363000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 76608000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 59496000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 52487000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 52487000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 52487000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 52487000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 52487000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 72187000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 91262000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            },
            {
              "end": "2024-09-30",
              "val": 72985000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            },
            {
              "end": "2024-12-31",
              "val": 82978000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 82978000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "end": "2024-12-31",
              "val": 82978000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "end": "2024-12-31",
              "val": 82978000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2024-12-31",
              "val": 82978000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-03-31",
              "val": 104081000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1I"
            },
            {
              "end": "2025-06-30",
              "val": 93157000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2025Q2I"
            },
            {
              "end": "2025-09-30",
              "val": 75884000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 62478000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2025-12-31",
              "val": 62478000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 62478000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 107260000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 101098000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "AccountsReceivableSale": {
        "label": "Accounts Receivable, Sale",
        "description": "Amount of decrease from sale of accounts receivable.",
        "units": {
          "USD": [
            {
              "start": "2022-07-01",
              "end": "2022-09-30",
              "val": 22900000,
              "accn": "0001097149-22-000067",
              "fy": 2022,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2022-11-04",
              "frame": "CY2022Q3"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 37000000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 37000000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 8000000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 8000000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 16200000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 16200000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 8200000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 8200000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2023Q2"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 40400000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 40400000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 24200000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 24200000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2023Q3"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 51200000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 51200000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 14600000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 14600000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 25900000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 25900000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 11300000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 11300000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06",
              "frame": "CY2024Q2"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 34200000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 34200000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 8200000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 8200000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2024Q3"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 52100000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 52100000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 6400000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 6400000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 24700000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 24700000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 18300000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-04-01",
              "end": "2025-06-30",
              "val": 18300000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q2"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 34600000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-07-01",
              "end": "2025-09-30",
              "val": 10000000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 47900000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": 11200000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": 18200000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2026-04-01",
              "end": "2026-06-30",
              "val": 7000000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2"
            }
          ]
        }
      },
      "DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger": {
        "label": "Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer",
        "description": "Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.",
        "units": {
          "USD": [
            {
              "end": "2022-12-31",
              "val": 74205000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 74205000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 74205000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 74205000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 74205000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 77077000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 70755000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 52123000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 32612000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 32612000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 32612000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 32612000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 32612000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 26719000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 18669000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            }
          ]
        }
      },
      "DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss": {
        "label": "Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss",
        "description": "Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for 12 months or longer, without allowance for credit loss. Includes beneficial interest in securitized financial asset.",
        "units": {
          "USD": [
            {
              "end": "2022-12-31",
              "val": 2992000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 2992000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 2992000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 2992000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 2992000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 2634000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 2095000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 1392000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 789000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 789000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 789000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 789000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 789000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 500000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 211000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            }
          ]
        }
      },
      "DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months": {
        "label": "Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months",
        "description": "Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for less than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.",
        "units": {
          "USD": [
            {
              "end": "2022-12-31",
              "val": 21554000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 21554000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 21554000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 21554000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 21554000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 6610000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 10045000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 10509000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 7065000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 7065000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 7065000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 7065000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 7065000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 7641000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 2013000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            }
          ]
        }
      },
      "DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss": {
        "label": "Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss",
        "description": "Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for less than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.",
        "units": {
          "USD": [
            {
              "end": "2022-12-31",
              "val": 639000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 639000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 639000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 639000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 639000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 23000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 85000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 86000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 23000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 23000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 23000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 23000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 23000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 39000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 0,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            }
          ]
        }
      },
      "DebtSecuritiesAvailableForSaleUnrealizedLossPosition": {
        "label": "Debt Securities, Available-for-sale, Unrealized Loss Position",
        "description": "Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position without allowance for credit loss.",
        "units": {
          "USD": [
            {
              "end": "2022-12-31",
              "val": 95759000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 95759000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 95759000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 95759000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 95759000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 83687000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 80800000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 62632000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 39677000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 39677000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 39677000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 39677000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 39677000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 34360000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 20682000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            }
          ]
        }
      },
      "DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss": {
        "label": "Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss",
        "description": "Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset.",
        "units": {
          "USD": [
            {
              "end": "2022-12-31",
              "val": 3631000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 3631000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "end": "2022-12-31",
              "val": 3631000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "end": "2022-12-31",
              "val": 3631000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "end": "2022-12-31",
              "val": 3631000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-03-31",
              "val": 2657000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05",
              "frame": "CY2023Q1I"
            },
            {
              "end": "2023-06-30",
              "val": 2180000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q2I"
            },
            {
              "end": "2023-09-30",
              "val": 1478000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 812000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 812000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "end": "2023-12-31",
              "val": 812000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "end": "2023-12-31",
              "val": 812000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "end": "2023-12-31",
              "val": 812000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 539000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            },
            {
              "end": "2024-06-30",
              "val": 211000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2I"
            }
          ]
        }
      },
      "DeferredTaxAssetsInProcessResearchAndDevelopment": {
        "label": "Deferred Tax Assets, in Process Research and Development",
        "description": "Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from in-process research and development costs expensed in connection with a business combination.",
        "units": {
          "USD": [
            {
              "end": "2021-12-31",
              "val": 413000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-12-31",
              "val": 54293000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 54293000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-12-31",
              "val": 41505000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 41505000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-12-31",
              "val": 32027000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 32027000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 23021000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025Q4I"
            }
          ]
        }
      },
      "DeferredTaxAssetsNet": {
        "label": "Deferred Tax Assets, Net of Valuation Allowance",
        "description": "Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.",
        "units": {
          "USD": [
            {
              "end": "2021-12-31",
              "val": 1551391000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-12-31",
              "val": 1582733000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 1582733000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-12-31",
              "val": 1596394000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 1596394000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-12-31",
              "val": 1571983000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 1571983000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 1530780000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025Q4I"
            }
          ]
        }
      },
      "OperatingLeaseLeaseIncome": {
        "label": "Operating Lease, Lease Income",
        "description": "Amount of operating lease income from lease payments and variable lease payments paid and payable to lessor. Includes, but is not limited to, variable lease payments not included in measurement of lease receivable.",
        "units": {
          "USD": [
            {
              "start": "2020-01-01",
              "end": "2020-12-31",
              "val": 0,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2020"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 0,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 0,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 12300000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 12300000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 12300000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 16600000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 16600000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 16600000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 21700000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 21700000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 28800000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            }
          ]
        }
      },
      "PaymentsForRestructuring": {
        "label": "Payments for Restructuring",
        "description": "Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.",
        "units": {
          "USD": [
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 4807000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2022-10-01",
              "end": "2022-12-31",
              "val": 4807000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2022Q4"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 3700000,
              "accn": "0001097149-23-000046",
              "fy": 2023,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2023-05-05"
            },
            {
              "start": "2023-01-01",
              "end": "2023-03-31",
              "val": 3700000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04",
              "frame": "CY2023Q1"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 300000,
              "accn": "0001097149-23-000059",
              "fy": 2023,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2023-08-04"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 3700000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q2"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 300000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 12606000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 12606000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 3752000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 4573000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 28691000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 28691000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 28691000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 11018000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 12914000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 19228000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 38345000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 38345000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 38345000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": 12063000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": 14458000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            }
          ]
        }
      },
      "PropertySubjectToOrAvailableForOperatingLeaseAccumulatedDepreciation": {
        "label": "Property Subject to or Available for Operating Lease, Accumulated Depreciation",
        "description": "The amount of accumulated depreciation, by major property class, recorded on property subject to or available for lease as of the balance sheet date.",
        "units": {
          "USD": [
            {
              "end": "2021-12-31",
              "val": 785000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-12-31",
              "val": 3919000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 3919000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-12-31",
              "val": 9815000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 9815000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-12-31",
              "val": 12038000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 12038000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 26222000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025Q4I"
            }
          ]
        }
      },
      "PropertySubjectToOrAvailableForOperatingLeaseGross": {
        "label": "Property Subject to or Available for Operating Lease, Gross",
        "description": "Amount before accumulated depreciation of physical assets used in the normal conduct of business to produce goods and services subject to or available for lease.",
        "units": {
          "USD": [
            {
              "end": "2021-12-31",
              "val": 10927000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-12-31",
              "val": 22914000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 22914000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-12-31",
              "val": 27145000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 27145000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-12-31",
              "val": 33770000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 33770000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 55576000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025Q4I"
            }
          ]
        }
      },
      "PropertySubjectToOrAvailableForOperatingLeaseNet": {
        "label": "Property Subject to or Available for Operating Lease, Net",
        "description": "The amount of property, by major property class, net of accumulated depreciation, subject to or available for lease as of the balance sheet date.",
        "units": {
          "USD": [
            {
              "end": "2021-12-31",
              "val": 10142000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-12-31",
              "val": 18995000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 18995000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-12-31",
              "val": 17330000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 17330000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-12-31",
              "val": 21732000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 21732000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 29354000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025Q4I"
            }
          ]
        }
      },
      "RestructuringReserveSettledWithoutCash2": {
        "label": "Restructuring Reserve, Settled without Cash",
        "description": "Amount of decrease in the reserve for full or partial settlement through consideration other than cash.",
        "units": {
          "USD": [
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 1453000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022"
            },
            {
              "start": "2022-10-01",
              "end": "2022-12-31",
              "val": 1453000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2022Q4"
            }
          ]
        }
      },
      "ValueAddedTaxReceivableCurrent": {
        "label": "Value Added Tax Receivable, Current",
        "description": "Carrying amount as of the balance sheet date of value added taxes due either from customers arising from sales on credit terms, or as previously overpaid to tax authorities. For classified balance sheets, represents the current amount receivable, that is amounts expected to be collected within one year or the normal operating cycle, if longer.",
        "units": {
          "USD": [
            {
              "end": "2021-12-31",
              "val": 93610000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27",
              "frame": "CY2021Q4I"
            },
            {
              "end": "2022-12-31",
              "val": 140484000,
              "accn": "0001097149-23-000013",
              "fy": 2022,
              "fp": "FY",
              "form": "10-K",
              "filed": "2023-02-27"
            },
            {
              "end": "2022-12-31",
              "val": 140484000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2022Q4I"
            },
            {
              "end": "2023-12-31",
              "val": 143728000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "end": "2023-12-31",
              "val": 143728000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-12-31",
              "val": 34028000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "end": "2024-12-31",
              "val": 34028000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 55819000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025Q4I"
            }
          ]
        }
      },
      "EquityMethodInvestmentOtherThanTemporaryImpairment": {
        "label": "Equity Method Investment, Other than Temporary Impairment",
        "description": "This item represents an other than temporary decline in value that has been recognized against an investment accounted for under the equity method of accounting. The excess of the carrying amount over the fair value of the investment represents the amount of the write down which is or was reflected in earnings. The written down value is a new cost basis with the adjusted value of the investment becoming its new carrying value subject to the equity accounting method. Evidence of a loss in value might include, but would not necessarily be limited to, absence of an ability to recover the carrying amount of the investment or inability of the investee to sustain an earnings capacity which would justify the carrying amount of the investment.",
        "units": {
          "USD": [
            {
              "start": "2022-01-01",
              "end": "2022-09-30",
              "val": 0,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 3329000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 3329000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 115000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 115000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "start": "2025-01-01",
              "end": "2025-09-30",
              "val": 85000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            }
          ]
        }
      },
      "LossContingencyDamagesSoughtValue": {
        "label": "Loss Contingency, Damages Sought, Value",
        "description": "The value (monetary amount) of the award the plaintiff seeks in the legal matter.",
        "units": {
          "USD": [
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 27000000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 27000000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2023Q3"
            },
            {
              "start": "2023-07-01",
              "end": "2024-03-31",
              "val": 95000000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            }
          ]
        }
      },
      "LossContingencyEstimateOfPossibleLoss": {
        "label": "Loss Contingency, Estimate of Possible Loss",
        "description": "Reflects the estimated amount of loss from the specified contingency as of the balance sheet date.",
        "units": {
          "USD": [
            {
              "end": "2023-09-30",
              "val": 100000000,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03",
              "frame": "CY2023Q3I"
            },
            {
              "end": "2023-12-31",
              "val": 100000000,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-03-31",
              "val": 115000000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1I"
            }
          ]
        }
      },
      "LossContingencyNewClaimsFiledNumber": {
        "label": "Loss Contingency, New Claims Filed, Number",
        "description": "The total number of new claims filed pertaining to a loss contingency during the period.",
        "units": {
          "claim": [
            {
              "start": "2019-01-01",
              "end": "2019-01-31",
              "val": 3,
              "accn": "0001097149-23-000082",
              "fy": 2023,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2023-11-03"
            },
            {
              "start": "2019-01-01",
              "end": "2019-01-31",
              "val": 3,
              "accn": "0001097149-24-000011",
              "fy": 2023,
              "fp": "FY",
              "form": "10-K",
              "filed": "2024-02-28"
            },
            {
              "start": "2019-01-01",
              "end": "2019-01-31",
              "val": 3,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2018Q4I"
            }
          ]
        }
      },
      "LitigationSettlementExpense": {
        "label": "Litigation Settlement, Expense",
        "description": "Amount of litigation expense, including but not limited to legal, forensic, accounting, and investigative fees.",
        "units": {
          "USD": [
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": 575000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03",
              "frame": "CY2024Q1"
            }
          ]
        }
      },
      "RestructuringReservePeriodIncreaseDecrease": {
        "label": "Restructuring Reserve, Period Increase (Decrease)",
        "description": "Amount of increase (decrease) in the accrual for restructuring costs.",
        "units": {
          "USD": [
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": -3900000,
              "accn": "0001097149-24-000033",
              "fy": 2024,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2024-05-03"
            },
            {
              "start": "2024-01-01",
              "end": "2024-03-31",
              "val": -3900000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2024Q1"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": -5100000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": -5100000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            },
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": -11000000,
              "accn": "0001097149-25-000034",
              "fy": 2025,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2025-05-08",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": -12900000,
              "accn": "0001097149-25-000064",
              "fy": 2025,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2025-08-06"
            }
          ]
        }
      },
      "LossContingencyLossInPeriod": {
        "label": "Loss Contingency, Loss in Period",
        "description": "The amount of loss pertaining to the specified contingency that was charged against earnings in the period, including the effects of revisions in previously reported estimates.",
        "units": {
          "USD": [
            {
              "start": "2023-01-01",
              "end": "2023-06-30",
              "val": 0,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2023-04-01",
              "end": "2023-06-30",
              "val": 0,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2023Q2"
            },
            {
              "start": "2023-01-01",
              "end": "2023-09-30",
              "val": 0,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2023-07-01",
              "end": "2023-09-30",
              "val": 0,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2023Q3"
            },
            {
              "start": "2024-01-01",
              "end": "2024-06-30",
              "val": 31127000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02"
            },
            {
              "start": "2024-04-01",
              "end": "2024-06-30",
              "val": 31127000,
              "accn": "0001097149-24-000049",
              "fy": 2024,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2024-08-02",
              "frame": "CY2024Q2"
            },
            {
              "start": "2024-01-01",
              "end": "2024-09-30",
              "val": 31193000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05"
            },
            {
              "start": "2024-07-01",
              "end": "2024-09-30",
              "val": 66000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3"
            }
          ]
        }
      },
      "LossContingencyAccrualAtCarryingValue": {
        "label": "Loss Contingency Accrual",
        "description": "Amount of loss contingency liability.",
        "units": {
          "USD": [
            {
              "end": "2024-09-30",
              "val": 31100000,
              "accn": "0001097149-24-000060",
              "fy": 2024,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2024-11-05",
              "frame": "CY2024Q3I"
            }
          ]
        }
      },
      "AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax": {
        "label": "Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax",
        "description": "Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).",
        "units": {
          "USD": [
            {
              "end": "2023-12-31",
              "val": 7000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-12-31",
              "val": 0,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 0,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025Q4I"
            }
          ]
        }
      },
      "AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax": {
        "label": "Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax",
        "description": "Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).",
        "units": {
          "USD": [
            {
              "end": "2023-12-31",
              "val": 812000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023Q4I"
            },
            {
              "end": "2024-12-31",
              "val": 0,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 0,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025Q4I"
            }
          ]
        }
      },
      "RestructuringReserveAccrualAdjustment1": {
        "label": "Restructuring Reserve, Accrual Adjustment",
        "description": "Amount of expense (reversal of expense) which increases (decreases) the restructuring reserve from an adjustment to a previously accrued restructuring liability.",
        "units": {
          "USD": [
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 13989000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 36393000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 36393000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 42944000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            }
          ]
        }
      },
      "UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount": {
        "label": "Unrecorded Unconditional Purchase Obligation",
        "description": "Amount of the unrecorded obligation to transfer funds in the future for fixed or minimum amounts or quantities of goods or services at fixed or minimum prices (for example, as in take-or-pay contracts or throughput contracts).",
        "units": {
          "USD": [
            {
              "end": "2024-12-31",
              "val": 2600000,
              "accn": "0001097149-25-000012",
              "fy": 2024,
              "fp": "FY",
              "form": "10-K",
              "filed": "2025-02-28",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-12-31",
              "val": 58400000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025Q4I"
            }
          ]
        }
      },
      "AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent": {
        "label": "Disposal Group, Including Discontinued Operation, Assets, Current",
        "description": "Amount classified as assets attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer.",
        "units": {
          "USD": [
            {
              "end": "2024-12-31",
              "val": 0,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05"
            },
            {
              "end": "2024-12-31",
              "val": 0,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-09-30",
              "val": 27858000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 27983000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27"
            },
            {
              "end": "2025-12-31",
              "val": 27983000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 27983000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 39832000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 0,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "DeferredRevenue": {
        "label": "Deferred Revenue",
        "description": "Amount of deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable.",
        "units": {
          "USD": [
            {
              "end": "2024-12-31",
              "val": 1433310000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2024Q4I"
            },
            {
              "end": "2025-09-30",
              "val": 1379047000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3I"
            },
            {
              "end": "2025-12-31",
              "val": 1347359000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06"
            },
            {
              "end": "2025-12-31",
              "val": 1347359000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2025Q4I"
            },
            {
              "end": "2026-03-31",
              "val": 1313117000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1I"
            },
            {
              "end": "2026-06-30",
              "val": 1277646000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05",
              "frame": "CY2026Q2I"
            }
          ]
        }
      },
      "InventoryWriteDown": {
        "label": "Inventory Write-down",
        "description": "Amount of loss from reductions in inventory due to subsequent measurement adjustments, including, but not limited to, physical deterioration, obsolescence, or changes in price levels.",
        "units": {
          "USD": [
            {
              "start": "2025-07-01",
              "end": "2025-09-30",
              "val": 14900000,
              "accn": "0001097149-25-000079",
              "fy": 2025,
              "fp": "Q3",
              "form": "10-Q",
              "filed": "2025-11-05",
              "frame": "CY2025Q3"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 14900000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            }
          ]
        }
      },
      "EffectiveIncomeTaxRateReconciliationCrossBorderOtherAmount": {
        "label": null,
        "description": null,
        "units": {
          "USD": [
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 825000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            }
          ]
        }
      },
      "EffectiveIncomeTaxRateReconciliationCrossBorderOtherPercent": {
        "label": null,
        "description": null,
        "units": {
          "pure": [
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 0.002,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            }
          ]
        }
      },
      "EffectiveIncomeTaxRateReconciliationFdiiAmount": {
        "label": null,
        "description": null,
        "units": {
          "USD": [
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 13611000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            }
          ]
        }
      },
      "EffectiveIncomeTaxRateReconciliationFdiiPercent": {
        "label": null,
        "description": null,
        "units": {
          "pure": [
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 0.023,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            }
          ]
        }
      },
      "EffectiveIncomeTaxRateReconciliationTaxContingencies": {
        "label": "Effective Income Tax Rate Reconciliation, Tax Contingency, Percent",
        "description": "Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to income tax contingencies. Includes, but not limited to, domestic tax contingency, foreign tax contingency, state and local tax contingency, and other contingencies.",
        "units": {
          "pure": [
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": -0.051,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            }
          ]
        }
      },
      "EffectiveIncomeTaxRateReconciliationTaxCreditsResearch": {
        "label": "Effective Income Tax Rate Reconciliation, Tax Credit, Research, Percent",
        "description": "Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to research tax credit.",
        "units": {
          "pure": [
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 0.013,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            }
          ]
        }
      },
      "IncomeTaxesPaidNet": {
        "label": "Income Taxes Paid, Net",
        "description": "The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes.",
        "units": {
          "USD": [
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 134753000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            }
          ]
        }
      },
      "IncomeTaxPaidFederalAfterRefundReceived": {
        "label": null,
        "description": null,
        "units": {
          "USD": [
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 72872000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            }
          ]
        }
      },
      "IncomeTaxPaidStateAndLocalAfterRefundReceived": {
        "label": null,
        "description": null,
        "units": {
          "USD": [
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 13792000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            }
          ]
        }
      },
      "IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate": {
        "label": "Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount",
        "description": "The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations.",
        "units": {
          "USD": [
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 122911000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            }
          ]
        }
      },
      "IncomeTaxReconciliationNondeductibleExpenseOther": {
        "label": "Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Amount",
        "description": "Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other nondeductible expenses.",
        "units": {
          "USD": [
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 3219000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            }
          ]
        }
      },
      "IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost": {
        "label": "Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Payment Arrangement, Amount",
        "description": "Amount of reported income tax expense (benefit) in excess of (less than) expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to nondeductible expense for award under share-based payment arrangement. Includes, but is not limited to, expense determined to be nondeductible upon grant or after for award under share-based payment arrangement.",
        "units": {
          "USD": [
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 17335000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            }
          ]
        }
      },
      "IncomeTaxReconciliationStateAndLocalIncomeTaxes": {
        "label": "Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount",
        "description": "Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to state and local income tax expense (benefit).",
        "units": {
          "USD": [
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 25901000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            }
          ]
        }
      },
      "IncomeTaxReconciliationTaxContingencies": {
        "label": "Effective Income Tax Rate Reconciliation, Tax Contingency, Amount",
        "description": "Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in income tax contingencies. Including, but not limited to, domestic tax contingency, foreign tax contingency, state and local tax contingency, and other contingencies.",
        "units": {
          "USD": [
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": -29673000,
              "accn": "0001097149-26-000014",
              "fy": 2025,
              "fp": "FY",
              "form": "10-K",
              "filed": "2026-02-27",
              "frame": "CY2025"
            }
          ]
        }
      },
      "EquityFairValueAdjustment": {
        "label": "Equity, Fair Value Adjustment",
        "description": "Amount of addition (reduction) to the amount at which an instrument classified in shareholders' equity could be incurred (settled) in a current transaction between willing parties.",
        "units": {
          "USD": [
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 0,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 0,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": 7724000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": 7499000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            }
          ]
        }
      },
      "PaymentsToAcquireNotesReceivable": {
        "label": "Payments to Acquire Notes Receivable",
        "description": "The cash outflow to acquire an agreement for an unconditional promise by the maker to pay the entity (holder) a definite sum of money at a future date. Such amount may include accrued interest receivable in accordance with the terms of the note. The note also may contain provisions including a discount or premium, payable on demand, secured, or unsecured, interest bearing or noninterest bearing, among myriad other features and characteristics.",
        "units": {
          "USD": [
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 0,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 0,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": 31342000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": 69834000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            }
          ]
        }
      },
      "StandardProductWarrantyAccrualPeriodIncreaseDecrease": {
        "label": "Standard Product Warranty Accrual, Period Increase (Decrease)",
        "description": "Amount of increase (decrease) in the standard product warranty accrual. Excludes extended product warranties.",
        "units": {
          "USD": [
            {
              "start": "2025-01-01",
              "end": "2025-03-31",
              "val": 4719000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2025Q1"
            },
            {
              "start": "2025-01-01",
              "end": "2025-06-30",
              "val": 12688000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            },
            {
              "start": "2026-01-01",
              "end": "2026-03-31",
              "val": -6776000,
              "accn": "0001097149-26-000040",
              "fy": 2026,
              "fp": "Q1",
              "form": "10-Q",
              "filed": "2026-05-06",
              "frame": "CY2026Q1"
            },
            {
              "start": "2026-01-01",
              "end": "2026-06-30",
              "val": -8633000,
              "accn": "0001097149-26-000060",
              "fy": 2026,
              "fp": "Q2",
              "form": "10-Q",
              "filed": "2026-08-05"
            }
          ]
        }
      }
    },
    "ecd": {
      "CoSelectedMeasureAmt": {
        "label": "",
        "description": "",
        "units": {
          "USD": [
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 3953000000,
              "accn": "0001097149-26-000023",
              "fy": null,
              "fp": null,
              "form": "DEF 14A",
              "filed": "2026-04-07",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 3735000000,
              "accn": "0001097149-26-000023",
              "fy": null,
              "fp": null,
              "form": "DEF 14A",
              "filed": "2026-04-07",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 3862000000,
              "accn": "0001097149-26-000023",
              "fy": null,
              "fp": null,
              "form": "DEF 14A",
              "filed": "2026-04-07",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 3999000000,
              "accn": "0001097149-26-000023",
              "fy": null,
              "fp": null,
              "form": "DEF 14A",
              "filed": "2026-04-07",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 4035000000,
              "accn": "0001097149-26-000023",
              "fy": null,
              "fp": null,
              "form": "DEF 14A",
              "filed": "2026-04-07",
              "frame": "CY2025"
            }
          ]
        }
      },
      "NonPeoNeoAvgCompActuallyPaidAmt": {
        "label": "",
        "description": "",
        "units": {
          "USD": [
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 9498811,
              "accn": "0001097149-26-000023",
              "fy": null,
              "fp": null,
              "form": "DEF 14A",
              "filed": "2026-04-07",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": -10393452,
              "accn": "0001097149-26-000023",
              "fy": null,
              "fp": null,
              "form": "DEF 14A",
              "filed": "2026-04-07",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 4701234,
              "accn": "0001097149-26-000023",
              "fy": null,
              "fp": null,
              "form": "DEF 14A",
              "filed": "2026-04-07",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 1542978,
              "accn": "0001097149-26-000023",
              "fy": null,
              "fp": null,
              "form": "DEF 14A",
              "filed": "2026-04-07",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 1766695,
              "accn": "0001097149-26-000023",
              "fy": null,
              "fp": null,
              "form": "DEF 14A",
              "filed": "2026-04-07",
              "frame": "CY2025"
            }
          ]
        }
      },
      "NonPeoNeoAvgTotalCompAmt": {
        "label": "",
        "description": "",
        "units": {
          "USD": [
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 4328778,
              "accn": "0001097149-26-000023",
              "fy": null,
              "fp": null,
              "form": "DEF 14A",
              "filed": "2026-04-07",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 3376160,
              "accn": "0001097149-26-000023",
              "fy": null,
              "fp": null,
              "form": "DEF 14A",
              "filed": "2026-04-07",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 4375124,
              "accn": "0001097149-26-000023",
              "fy": null,
              "fp": null,
              "form": "DEF 14A",
              "filed": "2026-04-07",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 4788150,
              "accn": "0001097149-26-000023",
              "fy": null,
              "fp": null,
              "form": "DEF 14A",
              "filed": "2026-04-07",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 4319352,
              "accn": "0001097149-26-000023",
              "fy": null,
              "fp": null,
              "form": "DEF 14A",
              "filed": "2026-04-07",
              "frame": "CY2025"
            }
          ]
        }
      },
      "PeerGroupTotalShareholderRtnAmt": {
        "label": "",
        "description": "",
        "units": {
          "USD": [
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 119,
              "accn": "0001097149-26-000023",
              "fy": null,
              "fp": null,
              "form": "DEF 14A",
              "filed": "2026-04-07",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 93,
              "accn": "0001097149-26-000023",
              "fy": null,
              "fp": null,
              "form": "DEF 14A",
              "filed": "2026-04-07",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 100,
              "accn": "0001097149-26-000023",
              "fy": null,
              "fp": null,
              "form": "DEF 14A",
              "filed": "2026-04-07",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 110,
              "accn": "0001097149-26-000023",
              "fy": null,
              "fp": null,
              "form": "DEF 14A",
              "filed": "2026-04-07",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 117,
              "accn": "0001097149-26-000023",
              "fy": null,
              "fp": null,
              "form": "DEF 14A",
              "filed": "2026-04-07",
              "frame": "CY2025"
            }
          ]
        }
      },
      "PeoActuallyPaidCompAmt": {
        "label": "",
        "description": "",
        "units": {
          "USD": [
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 76152942,
              "accn": "0001097149-26-000023",
              "fy": null,
              "fp": null,
              "form": "DEF 14A",
              "filed": "2026-04-07",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": -61348849,
              "accn": "0001097149-26-000023",
              "fy": null,
              "fp": null,
              "form": "DEF 14A",
              "filed": "2026-04-07",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 29461070,
              "accn": "0001097149-26-000023",
              "fy": null,
              "fp": null,
              "form": "DEF 14A",
              "filed": "2026-04-07",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 5198289,
              "accn": "0001097149-26-000023",
              "fy": null,
              "fp": null,
              "form": "DEF 14A",
              "filed": "2026-04-07",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 3855982,
              "accn": "0001097149-26-000023",
              "fy": null,
              "fp": null,
              "form": "DEF 14A",
              "filed": "2026-04-07",
              "frame": "CY2025"
            }
          ]
        }
      },
      "PeoTotalCompAmt": {
        "label": "",
        "description": "",
        "units": {
          "USD": [
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 21591400,
              "accn": "0001097149-26-000023",
              "fy": null,
              "fp": null,
              "form": "DEF 14A",
              "filed": "2026-04-07",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 18684044,
              "accn": "0001097149-26-000023",
              "fy": null,
              "fp": null,
              "form": "DEF 14A",
              "filed": "2026-04-07",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 28952411,
              "accn": "0001097149-26-000023",
              "fy": null,
              "fp": null,
              "form": "DEF 14A",
              "filed": "2026-04-07",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 27321179,
              "accn": "0001097149-26-000023",
              "fy": null,
              "fp": null,
              "form": "DEF 14A",
              "filed": "2026-04-07",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 19193988,
              "accn": "0001097149-26-000023",
              "fy": null,
              "fp": null,
              "form": "DEF 14A",
              "filed": "2026-04-07",
              "frame": "CY2025"
            }
          ]
        }
      },
      "TotalShareholderRtnAmt": {
        "label": "",
        "description": "",
        "units": {
          "USD": [
            {
              "start": "2021-01-01",
              "end": "2021-12-31",
              "val": 123,
              "accn": "0001097149-26-000023",
              "fy": null,
              "fp": null,
              "form": "DEF 14A",
              "filed": "2026-04-07",
              "frame": "CY2021"
            },
            {
              "start": "2022-01-01",
              "end": "2022-12-31",
              "val": 39,
              "accn": "0001097149-26-000023",
              "fy": null,
              "fp": null,
              "form": "DEF 14A",
              "filed": "2026-04-07",
              "frame": "CY2022"
            },
            {
              "start": "2023-01-01",
              "end": "2023-12-31",
              "val": 51,
              "accn": "0001097149-26-000023",
              "fy": null,
              "fp": null,
              "form": "DEF 14A",
              "filed": "2026-04-07",
              "frame": "CY2023"
            },
            {
              "start": "2024-01-01",
              "end": "2024-12-31",
              "val": 39,
              "accn": "0001097149-26-000023",
              "fy": null,
              "fp": null,
              "form": "DEF 14A",
              "filed": "2026-04-07",
              "frame": "CY2024"
            },
            {
              "start": "2025-01-01",
              "end": "2025-12-31",
              "val": 29,
              "accn": "0001097149-26-000023",
              "fy": null,
              "fp": null,
              "form": "DEF 14A",
              "filed": "2026-04-07",
              "frame": "CY2025"
            }
          ]
        }
      }
    }
  }
}